Document:

Registration Rights Agreement

 Exhibit 4.3 

REGISTRATION RIGHTS AGREEMENT 

This REGISTRATION RIGHTS AGREEMENT, dated effective as of February 19, 2014 (this “Agreement”), is between
Lighting Science Group Corporation (the “Company”), Medley Capital Corporation (the “Medley”) and Medley Opportunity Fund II LP (“Opportunity” and together with Medley,
“Investors”) 
 W I T N E S S E T H: 

WHEREAS, on the date hereof, the Investors are acquiring warrants (the “Warrants”) to purchase up to ten
million (10,000,000) shares of Common Stock, $0.001 par value per share (“Common Stock”), of the Company; and 

WHEREAS, the Investors and the Company desire to enter into this Agreement to provide for certain rights relating to the registration
of such shares of Common Stock. 
 AGREEMENT 

NOW, THEREFORE, in consideration of the foregoing and the mutual covenants and agreements herein contained and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows: 

Section 1. Certain Definitions. For purposes of this Agreement, the following terms have the meanings set forth below: 

“Affiliate” means any Person that, directly or indirectly, through one or more intermediaries, controls or is
controlled by or is under common control with the Person specified. For purposes of this definition, control of a Person means the power, direct or indirect, to direct or cause the direction of the management and policies of such Person, whether by
contract, through the ownership of voting securities, or otherwise, and the terms “controlling” and “controlled” have meanings correlative to the foregoing; provided, that in no event shall any Holder be deemed an
Affiliate of the Company. 
 “Commission” means the Securities and Exchange Commission, or any other federal agency
at the time administering the Securities Act. 
 “Convertible Securities” means any evidences of indebtedness,
including bonds and debentures, shares, including preferred stock, warrants, options or other securities that are convertible into or exchangeable or exercisable for Common Stock. 

“Exchange Act” means the Securities Exchange Act of 1934, or any successor federal statute, and the rules and
regulations of the Commission thereunder, as the same may be amended from time to time. 
 “Holder” or
“Holders” means the Investors and/or any subsequent Permitted Transferee. 
 “Geveran Registration Rights
Agreement” means that certain Registration Rights Agreement, dated as of June 6, 2011, by and between the Company and Geveran Investments Ltd. 

“Home Depot Registration Rights Agreement” means that certain Registration Rights Agreement, dated as of
January 14, 2011, by and between the Company and The Home Depot, Inc. 
 “Pegasus Registration Rights
Agreement” means the Amended and Restated Registration Rights Agreement dated January 23, 2009, as further amended as of May 25, 2012, by and between the Company and Pegasus Partners IV, L.P. 

 “Person” means an individual, a corporation, a partnership, an
association, a joint-stock company, a trust, any unincorporated organization, or a government or political subdivision thereof. 

“Permitted Transferee” means any Person to whom Registrable Securities may be transferred in accordance with the
requirements set forth in Section 7. 
 “Public Offering” means the sale of the Company’s Common
Stock for cash to the public pursuant to an effective registration statement filed under the Securities Act. 
 “Registrable
Securities” means (i) all of the shares of Common Stock owned or held as of the date of this Agreement by the Investors or acquired at any time hereafter if at such time the Investors hold Registrable Securities, including in each
case any vested shares of Common Stock issuable pursuant to the exercise of the Warrant or any other Convertible Securities (provided that the underlying shares have vested); (ii) any shares of Common Stock owned or held by, or issuable
pursuant to the conversion, exchange or exercise of any Convertible Securities (provided that the underlying shares have vested) to, a transferee of the Investors to whom rights, duties and obligations under this Agreement are assigned by the
Investors in accordance with Section 7; and (iii) any shares of capital stock or other securities of the Company issued as a dividend or other distribution with respect to or in exchange for or in replacement of any of the
Registrable Securities described in (i) and (ii) above; provided, that as to any particular Registrable Securities, such securities shall cease to be Registrable Securities when: (a) a registration statement with respect to the
sale of such securities shall have become effective under the Securities Act and such securities shall have been sold, transferred, disposed of or exchanged pursuant to such registration statement; (b) such securities shall have been otherwise
transferred, new certificates for them not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of them shall not require registration under the Securities Act; (c) such
securities shall have ceased to be outstanding, or (d) the first date upon which such securities are saleable under Rule 144 (or any successor provision) promulgated by the Commission in a three month period without regard to any volume
limitation requirements under Rule 144. 
 “Securities Act” means the Securities Act of 1933, or any successor
federal statute, and the rules and regulations of the Commission thereunder, as the same may be amended from time to time. 

“Tri-Party Registration Rights Agreement” means that certain Amended and Restated Registration Rights Agreement, dated
as of September 25, 2012, by and among the Company, RW LSG Holdings LLC, RW LSG Management Holdings LLC, Cleantech Europe II (A) LP, Cleantech Europe II (B) LP and Portman Limited. 

Section 2. Piggyback Registration.  

(a) If at any time, the Company proposes to file a Registration Statement with respect to a Public Offering (other than a registration
statement: (i) on Form S-4 or S-8 or any successor form filed under the Securities Act; (ii) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange offer or offering of securities solely to the
Company’s existing stockholders, (iii) for an offering of debt that is convertible into equity securities of the Company; (iv) for a dividend reinvestment plan; or (v) on any other form not available for registering the
Registrable Securities for sale to the public), the Company shall promptly provide each Holder with written notice (which notice shall be given not less than fifteen (15) business days prior to the effective date of such registration statement)
of such registration (a “Piggyback Registration”), which notice shall offer such Holder the opportunity to register such amount of Registrable Securities as it shall request. Each Holder of Registrable Securities shall have
ten (10) business days from the date of receipt of the Company’s notice to deliver to the Company a written request for inclusion of such Holder’s Registrable Securities, specifying the number of such Registrable Securities to be
included in the registration. Any Holder shall have the right to withdraw such Holder’s request for inclusion at any time by sending a written withdrawal notice to the Company. The Company shall include in such registration all the Registrable
Securities requested to be included by any Holder in accordance with this Section 2(a). 

 (b) If the Company intends for the Common Stock being registered pursuant to any Piggyback
Registration to be distributed pursuant to an underwriting (an “Underwritten Piggyback Registration”), the notice provided by the Company to each Holder pursuant to Section 2 shall state that such registration
will be underwritten. In connection with an Underwritten Piggyback Registration, the Board of Directors of the Company shall select the institution or institutions that shall manage or lead such offering (the “Underwriter”).

 (c) Notwithstanding anything to the contrary in Section 2, the right of any Holder to participate in an Underwritten
Piggyback Registration shall be conditioned upon such Holder agreeing to (i) sell all of its Registrable Securities included in such registration on the basis provided in any underwriting arrangements approved by the Company and
(ii) complete and execute all reasonable questionnaires, powers of attorney, indemnities, underwriting agreements, lock-up letters and other documents required under the terms of such underwriting arrangements. 

(d) If in connection with any Underwritten Piggyback Registration the Underwriter advises the Company that in its opinion the number of
securities requested to be included in such registration exceeds the number that can reasonably be sold in such offering, then the Company shall include in such registration: (i) first, all of the securities that the Company proposes to sell;
(ii) second, all of the securities requested to be included therein by any Persons exercising demand registration rights granted by the Company; (iii) third, all of the securities requested to be included therein pursuant to and in
accordance with the Pegasus Registration Rights Agreement, the Home Depot Registration Rights Agreement, the Geveran Registration Rights Agreement and the Tri-Party Registration Rights Agreement; and (iv) fourth, on a pro-rata basis all of the
Registrable Securities requested to be included therein by the Holders. If the number of Registrable Securities that any Holder requested be included in an Underwritten Piggyback Registration is to be reduced as a result of this
Section 2(d), the Company shall promptly notify such Holder of any such reduction and the number of Registrable Securities of such Holder that will be included in such registration. 

(e) If in connection with any Underwritten Piggyback Registration any Holder disapproves of the terms of the underwriting, such Holder may
elect to withdraw from such underwriting by delivering written notice to the Company and the Underwriter at least three (3) business days prior to the effective date of the registration statement. Any Registrable Securities withdrawn from such
underwriting shall also be withdrawn from such registration. 
 (f) Nothing in this Agreement shall create any liability on the part of the
Company to the Holders if the Company in its sole discretion should decide not to file a registration statement proposed to be filed pursuant to Section 2 or to withdraw such registration statement subsequent to its filing, regardless of
any action whatsoever that a Holder may have taken, whether as a result of the issuance by the Company of any notice hereunder or otherwise. 

(g) The Company shall be entitled to suspend the rights of selling Holders to make sales pursuant to a registration statement otherwise
required to be kept effective hereunder if the Company determines in good faith that there exists a material proposed event (including any proposed acquisition or disposition) that would be required to be disclosed in such registration statement and
the disclosure of which would either have a material adverse effect on such proposed transaction or the Company. 
 (h) Upon receipt of
written notice from the Company that a registration statement or prospectus contains a misstatement, each Holder of Registrable Securities shall forthwith discontinue the disposition of Registrable Securities until the Holder has received copies of
the supplemented or amended prospectus that corrects such misstatement, or until such Holder is advised in writing by the Company that the use of the prospectus may be resumed, and, if directed by the Company, such Holder shall deliver to the
Company (at the Company’s expense) all copies of the prospectus covering such Registrable Securities current at the time of receipt of such notice. 

Section 3. Registration Procedures.  

(a) In the case of each registration by the Company pursuant to this Agreement (but subject to Section 2 hereof), the Company
shall use its commercially reasonable efforts to: 
 (i) Prepare and file with the Commission a registration statement with
respect to such Registrable Securities and use its commercially reasonable efforts to cause such registration statement to become effective, and keep such registration statement effective for a period of up to ninety (90) days or until the
distribution 

 
contemplated in the registration statement has been completed; provided, that such period shall be extended to take into account any period in which a Holder is subject to a suspension or
discontinuance of sales pursuant to Section 2(g) or Section 2(h); 
 (ii) Prepare and file with the
Commission such amendments, supplements and post-effective amendments to such registration statement and the prospectus used in connection with such registration statement as may be necessary to comply with the provisions of the Securities Act with
respect to the disposition of all Registrable Securities covered by such registration statement; 
 (iii) Furnish to the
Holders such numbers of copies of a prospectus, including a preliminary prospectus, in conformity with the requirements of the Securities Act, and such other documents as they may reasonably request in order to facilitate the disposition of
Registrable Securities owned by them; 
 (iv) Use its commercially reasonable efforts to register or qualify the Registrable
Securities covered by such registration statement under such other securities or blue sky laws of such jurisdictions as shall be reasonably requested by the Holders; provided, that the Company shall not be required in connection therewith or
as a condition thereto (A) to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify but for this Section 3(a)(iv); (B) subject itself to taxation but for this
Section 3(a)(iv); or (C) consent to general service of process in any jurisdiction in which it would not otherwise be subject to general service of process but for this Section 3(a)(iv); 

(v) Use its commercially reasonable efforts to cause the Registrable Securities covered by such registration statement to be
registered with or approved by such other governmental agencies or authorities as may be required by virtue of the business and operations of the Company to enable the Holder or Holders thereof to consummate the disposition of such Registrable
Securities; 
 (vi) Immediately notify the managing Underwriter, if any, and each Holder under such registration statement at
any time when a prospectus relating thereto is required to be delivered under the Securities Act, of the happening of any event which comes to the Company’s attention if as a result of such event the prospectus included in such registration
statement, as then in effect, contains an untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein not misleading in light of the circumstances (and upon
receipt of any such notice, each selling Holder agrees to suspend sales of Registrable Securities covered by such prospectus until such time as the Company notifies each Holder that the prospectus (as supplemented or amended) no longer includes any
untrue statement of a material fact or omits to state any material fact required to be stated therein or necessary to make the statements therein not misleading in light of the circumstances then existing), and the Company shall promptly prepare and
furnish to such Holder a supplement or amendment to such prospectus so that, as thereafter delivered to the purchasers of such Registrable Securities, such prospectus shall not contain an untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary to make the statements therein not misleading in light of the circumstances; 

(vii) Use its commercially reasonable efforts to cause all such Registrable Securities covered by the registration statement to
be listed on each securities exchange or quotation system on which similar securities issued by the Company are then listed, and enter into such customary agreements, including a listing application; provided, that the applicable listing
requirements are satisfied; 
 (viii) Make available for inspection during normal business hours by any Holder of Registrable
Securities covered by such registration statement, any Underwriter participating in any disposition pursuant to such registration statement, and any attorney, accountant or other agent retained by any such Holder or Underwriter (collectively, the
“Inspectors”), all financial and other records, pertinent corporate documents and properties of the Company and its subsidiaries (collectively, “Records”), if any, as shall be reasonably necessary to
enable them to exercise their due diligence responsibility, and cause the Company’s and its subsidiaries’ officers, directors and employees to supply all information and respond to all inquiries reasonably requested by any such Inspector
in connection with such registration statement. Notwithstanding the foregoing, the Company shall have no obligation to disclose any Records to the Inspectors in the event the Company determines that such disclosure is reasonably likely to have an
adverse effect on the Company’s ability to assert the existence of an attorney-client privilege with respect thereto; 

 (ix) If the offering is underwritten, enter into such agreements (including an
underwriting agreement in form, scope and substance as is customary in underwritten offerings) and take all such other appropriate and reasonable actions requested by the Holders of a majority (by number of shares) of the Holders of Registrable
Securities being sold in connection therewith (including those reasonably requested by the managing Underwriters) in order to expedite or facilitate the disposition of such Registrable Securities; and 

(x) Comply, and continue to comply during the period that such registration statement is effective under the Securities Act, in
all material respects with the Securities Act and the Exchange Act and with all applicable rules and regulations of the Commission with respect to the disposition of all Registrable Securities covered by such registration statement, and make
available to its security holders, as soon as reasonably practicable, an earnings statement covering the period of at least twelve (12) months, but not more than eighteen (18) months, which earnings statement shall satisfy the provisions
of Section 11(a) of the Securities Act. 
 (b) In connection with any registration statement in which Holders are participating, each
seller of Registrable Securities shall furnish to the Company in writing such information and affidavits with respect to itself and its proposed distribution of Registrable Securities as shall be reasonably necessary in order to assure compliance
with federal and applicable state securities laws. 
 Section 4. Registration Expenses.  

(a) Subject to Section 4(b), all expenses incident to the Company’s performance of or compliance with this Agreement,
including, without limitation, all registration, qualification and filing fees, fees and expenses of compliance with federal and applicable state securities laws, printing expenses, escrow fees, messenger and delivery expenses, and fees and
disbursements of counsel for the Company and all independent certified public accountants, Underwriters (excluding discounts and commissions) and other Persons, retained by the Company (all such expenses being herein called “Registration
Expenses”), will be borne by the Company. 
 (b) If the Holders choose to be represented by separate counsel in connection with
the registration of the Registrable Securities, then the Holders will bear the cost of such separate legal counsel. Any underwriting discounts or commissions incurred in connection with, and attributable to, the sale of Registrable Securities shall
be borne by the Holders of such Registrable Securities. 
 Section 5. Indemnification.  

(a) In the event of a registration of any of the Registrable Securities under the Securities Act pursuant to Section 2 of this
Agreement, the Company agrees to indemnify and hold harmless (i) each seller of Registrable Securities and (ii) each Person, if any, who controls (within the meaning of Section 15 of the Securities Act or Section 20 of the
Exchange Act) such seller of Registrable Securities (any of the Persons referred to in this clause (ii) being hereinafter referred to as a “controlling person”) and (iii) the respective officers, directors,
partners, employees, representatives and agents of any seller of Registrable Securities or any controlling person, to the fullest extent permitted by law, from and against any and all losses, claims, damages, liabilities, judgments, actions and
reasonable expenses (including without limitation and as incurred, reimbursement of all reasonable costs of investigating, preparing, pursuing or defending any claim or action, or any investigation or proceeding by any governmental agency or body,
commenced or threatened, including the reasonable fees and expenses of counsel to any such party) directly or indirectly caused by, related to, based upon, arising out of or in connection with any untrue statement or alleged untrue statement of a
material fact contained in any registration statement under which such Registrable Securities were registered under the Securities Act (or any preliminary prospectus or final prospectus contained therein, or any amendment or supplement thereof), or
any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading; provided, that the Company shall not be liable in any such case insofar as such
losses, claims, damages, liabilities or expenses are caused by an untrue statement or omission or alleged untrue statement or omission that is made in reliance upon and in conformity with information relating to any seller of Registrable Securities
that is furnished in 

 
writing to the Company by such seller or any controlling person of such seller specifically for use in such registration statement or prospectus; provided, further, that the
indemnity agreement contained in this Section 5(a) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability, judgment, action or expense if such settlement is effected without the consent of the Company
(which consent shall not be unreasonably withheld). 
 (b) In the event of a registration of any of the Registrable Securities under the
Securities Act pursuant to Section 2 of this Agreement, each seller of Registrable Securities thereunder agrees, severally and not jointly, to indemnify and hold harmless the Company, and its respective directors, officers, and each
Person, if any, who controls (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) the Company, and the respective officers, directors, partners, employees, representatives and agents of each such
Person, each Underwriter and each Person, if any, who controls any Underwriter (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act), and each other seller of Registrable Securities and each Person who
controls any such other seller of Registrable Securities, to the fullest extent permitted by law, from and against any and all losses, claims, damages, liabilities, judgments, actions and reasonable expenses (including without limitation and as
incurred, reimbursement of all reasonable costs of investigating, preparing, pursuing or defending any claim or action, or any investigation or proceeding by any governmental agency or body, commenced or threatened, including the reasonable fees and
expenses of counsel to any such party) directly or indirectly caused by, related to, based upon, arising out of or in connection with any untrue statement or alleged untrue statement of a material fact contained in any registration statement under
which such Registrable Securities were registered under the Securities Act (or any preliminary prospectus or final prospectus contained therein, or any amendment or supplement thereof), or any omission or alleged omission to state therein a material
fact required to be stated therein or necessary to make the statements therein not misleading, which untrue statement or alleged untrue statement or omission or alleged omission is made solely in reliance upon and in express conformity with
information pertaining to such seller that is furnished in writing to the Company by such seller or any controlling person of such seller specifically for use in such registration statement or prospectus; provided, that (i) the indemnity
agreement contained in this Section 5(b) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability, judgment, action or expense if such settlement is effected without the consent of such seller (which
consent shall not be unreasonably withheld) and (ii) the maximum aggregate liability of such seller shall in no event exceed the net proceeds actually received by such seller upon sale of Registrable Securities. 

(c) Promptly after receipt by an indemnified party hereunder of notice of the commencement of any action, such indemnified party shall, if a
claim in respect thereof is to be made against the indemnifying party hereunder, notify the indemnifying party in writing thereof, but the omission to promptly notify the indemnifying party shall not relieve it from any liability which it may have
to any indemnified party under this Section 5, except to the extent that the indemnifying party is actually prejudiced by such failure to give notice. In case any such action shall be brought against any indemnified party and it shall
promptly notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate in and, to the extent it shall wish, to assume and undertake the defense thereof with counsel reasonably satisfactory to such
indemnified party, and, after notice from the indemnifying party to such indemnified party of its election to assume and undertake the defense thereof, the indemnifying party shall not be liable to such indemnified party under this
Section 5 for any legal expenses subsequently incurred by such indemnified party in connection with the defense thereof other than reasonable costs of investigation and of liaison with counsel so selected; provided, that if the
defendants in any such action include both the indemnified party and the indemnifying party and counsel to the indemnified party shall have reasonably concluded in writing that there may be reasonable defenses available to it which are different
from or additional to those available to the indemnifying party, or if the interests of the indemnified party reasonably may be deemed to conflict with the interests of the indemnifying party, the indemnified party shall have the right to select a
separate counsel and to assume such legal defenses and otherwise to participate in the defense of such action, with the reasonable expenses and fees of such separate counsel and other expenses related to such participation to be reimbursed by the
indemnifying party as incurred. Notwithstanding the foregoing, any indemnified party shall have the right to retain its own counsel in any such action, but the fees and disbursements of such counsel shall be at the expense of such indemnified party;
provided, that such fees and expenses shall be at the expense of the indemnifying party if (i) the indemnifying party shall have failed to retain counsel for the indemnified party in accordance with this Section 5(c) or
(ii) the indemnifying party and such indemnified party shall have mutually agreed to the retention 

 
of such counsel. It is understood that the indemnifying party shall not, in connection with any action or related actions in the same jurisdiction, be liable for the fees and disbursements of
more than one separate firm qualified in such jurisdiction to act as counsel for the indemnified party. No indemnifying party, in the defense of any such claim or litigation, shall, except with the written consent of such indemnified party, which
consent shall not be unreasonably withheld, consent to entry of any judgment or enter into any settlement of any pending or threatened action in respect of which any indemnified party is or could have been a party and indemnity was sought hereunder
by such indemnified party unless such judgment or settlement includes as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability in respect to such claim or litigation and does
not include a statement as to, or an admission of, fault, culpability or a failure to act by or on behalf of the indemnified party. The indemnification procedures of Underwriters provided for in this Section 5 shall be on such other
terms and conditions as are at the time customary and reasonably required by such Underwriter as provided in Section 2(c). 

(d) If the indemnification provided for in Section 5(a) and Section 5(b) above is unavailable or insufficient to hold
harmless an indemnified party under such sections in respect of any losses, claims, damages, liabilities, judgments, actions or expenses in respect thereof referred to therein, then each indemnifying party shall in lieu of indemnifying such
indemnified party contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages, liabilities, judgments, actions or expenses in such proportion as appropriate to reflect the relative fault of the
Company, on the one hand, and the Underwriters or the sellers of such Registrable Securities, on the other, in connection with the statements or omissions which resulted in such losses, claims, damages, liabilities, judgments, actions or expenses as
well as any other relevant equitable considerations, including, without limitation, the failure to give any notice under Section 5(c) above. The relative fault shall be determined by reference to, among other things, whether the untrue
or alleged untrue statement of a material fact relates to information supplied by the Company, on the one hand, or the Underwriter or the sellers of such Registrable Securities, on the other, and to the parties’ relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or omission. The Company and each of the Holders agrees that it would not be just and equitable if contributions pursuant to this Section 5(d) were determined by
pro rata allocation (even if all of the sellers of such Registrable Securities were treated as one entity for such purpose) or by any other method of allocation which did not take account of the equitable considerations referred to above in this
section. The amount paid or payable by an indemnified party as a result of the losses, claims, damages, liabilities, judgments, actions or expenses in respect thereof, referred to in this Section 5(d), shall be deemed to include any
legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. No Person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act), shall be entitled to contribution from any Person who is not guilty of such fraudulent misrepresentation. 

Section 6. Rule 144. The Company agrees with the Holders that it shall file any and all reports required to be filed by it under
the Securities Act and the Exchange Act and the rules and regulations adopted by the Commission thereunder. Upon the written request of any Holder, the Company shall promptly furnish to such Holder a written statement by the Company as to its
compliance with the reporting requirements set forth in this Section 6. 
 Section 7. Holdback Agreement. Each
Holder agrees that in the event (a) the Company proposes to offer for sale to the public any of its equity securities, (b) such Holder is requested by the Company and any underwriter engaged by the Company in connection with such offering
to sign an agreement restricting the sale or other transfer of any Registrable Securities and (c) the following persons are restricted in the same manner and for the same duration: (i)(A) all of the Company’s affiliates and executive
officers and all of the members of the Board of Directors and (B) all of the securities that could be requested to be included in any registration pursuant to Pegasus Registration Rights Agreement and the Tri-Party Registration Rights Agreement
and (ii) if such persons are selling stockholders in such offering, (A) all of the securities that could be requested to be included in any registration pursuant to Home Depot Registration Rights Agreement and the Geveran Registration
Rights Agreement and any successors, assigns and transferees thereof, then it will promptly sign such agreement and will not transfer, whether in privately negotiated transactions or to the public in open market transactions or otherwise, any
Registrable Securities or any other securities of the Company held by him, her or it during such period as is determined by the Company and the underwriters, not to exceed the seven (7) day period prior to and 180 days following the closing of
the offering (such period, the “Lock-Up Period”). Such agreement shall be in writing and in form and substance reasonably satisfactory to the Company and such underwriter and pursuant to

 
customary and prevailing terms and conditions. Notwithstanding whether the Holder has signed such an agreement, the Company may impose stop-transfer instructions with respect to the Registrable
Securities or any other securities of the Company subject to the foregoing restrictions until the end of the Lock-Up Period. Notwithstanding the foregoing, if any Affiliate of the Company is or becomes subject to a shorter Lock-Up Period under any
lock-up agreement (including but not limited to as a result of any discretionary waiver or termination of the restrictions of any or all of such agreements by the Company or the underwriters), then the Lock-Up Period shall be such shorter period.

 Section 8. Headings. The underlined headings contained in this Agreement are for convenience of reference only, shall not be
deemed to be a part of this Agreement and shall not be referred to in connection with the construction or interpretation of this Agreement. 

Section 9. Severability. Any term or provision of this Agreement that is invalid or unenforceable in any situation in any
jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions hereof or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If the final judgment
of a court of competent jurisdiction declares that any term or provision hereof is invalid or unenforceable, the parties hereto agree that the court making such determination shall have the power to limit the term or provision, to delete specific
words or phrases, or to replace any invalid or unenforceable term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this
Agreement shall be enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable
term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term. 

Section 10. Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their
successors and assigns (if any). No party may assign this Agreement or any rights, interests or obligations hereunder (in whole or in part, by operation of law or otherwise) to any Person without the prior written consent of the other party, and any
attempt to make such assignment without such consent shall be null and void ab initia; provided, that the Investors (or their successor or assign) may freely assign its rights, interests and obligations hereunder without prior written
consent in connection with a permitted transfer by the Investors (or their successor or assign) of the Warrant. 
 Section 11.
Entire Agreement; Modification. This Agreement constitutes the entire agreement among the parties with respect to the subject matter hereof and supersedes all prior agreements and understandings, oral and written, between the parties hereto
with respect to the subject matter hereof. None of the provisions of this Agreement may be amended, modified or supplemented, and waivers or consents to departures from the provisions thereof may not be given, unless the Company has obtained the
written consent of Holders holding a majority of the Registrable Securities; provided, that a waiver or consent to departure from the provisions of this Agreement that relates exclusively to the rights of Holders whose Registrable Securities
are being sold pursuant to a registration statement and that does not directly or indirectly adversely affect the rights of any other Holders may be given by the Holders of a majority of the Registrable Securities being sold. Notwithstanding the
foregoing, no Holder’s rights under Section 5 may be adversely affected without the consent of such Holder. 

Section 12. Notices. All notices, requests, demands, claims and other communications that are required or may be given pursuant to
this Agreement must be in writing and delivered personally against written receipt, by facsimile, by email or by reputable domestic or international overnight courier to the parties at the following addresses (or to the attention of such other
Person or at such other address as any party may provide to the other party by notice in accordance with this Section 7): 
  

			
	 If to the Company, to it at:
	  	Lighting Science Group Corporation
		  	1227 South Patrick Drive
		  	Building 2A
		  	Satellite Beach, FL 32937
		  	Attention: Thomas C. Shields, Chief Financial Officer
		  	Telephone: (321) 779-5520
		  	Facsimile: (321) 779-5521
		  	Email: tom.shields@lsgc.com

			
	 with a copy to:
	  	Haynes and Boone, LLP
		  	2323 Victory Avenue, Suite 700
		  	Dallas, TX 75219
		  	Attention: Ryan R. Cox
		  	Telephone: (214) 651-5273
		  	Facsimile: (214) 200-0534
		  	Email: ryan.cox@haynesboone.com
		
	 If to the Investors, to it at:
	  	 Medley Opportunity Fund II LP
 c/o Medley
Capital Corporation

		  	Attention: Brian Dohmen and Gregory Richards
		  	375 Park Avenue, Suite 3304
		  	New York, New York 10152
		  	Facsimile: (212) 759-0091
		
	 with a copy to:
	  	Proskauer Rose LLP
		  	One International Place
		  	Boston, MA 02110-2600
		  	Attention: Steven M. Ellis
		  	Telephone: (617) 526-9600
		  	Facsimile: (617) 526-9899
		  	Email: SEllis@proskauer.com

 Any such notice, request, demand, claim or other communication will be deemed to have been given (a) if
personally delivered, when so delivered, (b) if sent by facsimile or email, upon transmission with electronic confirmation thereof or (c) if sent by reputable domestic or international overnight courier, when received. 

Section 13. Counterparts. This Agreement may be executed in several counterparts, each of which shall constitute an original and
all of which, when taken together, shall constitute one agreement. The exchange of a fully executed Agreement (in counterparts or otherwise) by fax or email (in .pdf or .tif format) transmission shall be sufficient to bind the parties to the terms
and conditions of this Agreement. No party to this Agreement will raise the use of a fax or email to deliver a signature or the fact that any signature or agreement or instrument was transmitted or communicated through the use of a fax or email as a
defense to the formation or enforceability of a contract, and each such party forever waives any such defense. 
 Section 14.
Remedies Cumulative. In the event that the Company fails to observe or perform any covenant or agreement to be observed or performed under this Agreement, a Holder may proceed to protect and enforce its rights by suit in equity or action at
law, whether for specific performance of any term contained in this Agreement or for an injunction against the breach of any such term or in aid of the exercise of any power granted in this Agreement or to enforce any other legal or equitable right,
or to take any one or more of such actions, without being required to post a bond. None of the rights, powers or remedies conferred under this Agreement shall be mutually exclusive, and each such right, power or remedy shall be cumulative and in
addition to any other right, power or remedy, whether conferred by this Agreement or now or hereafter available at law, in equity, by statute or otherwise. 

 Section 15. Governing Law.  

(a) This Agreement shall be governed by and construed in accordance with the laws of the State of New York, without giving effect to conflicts
of law principles that would result in the application of the substantive laws of another jurisdiction. Each of the parties hereby agrees that any action, proceeding or claim against it arising out of or relating in any way to this Agreement shall
be brought and enforced in the courts of the State of New York or the United States District Court for the District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. Each of the parties hereby waives
any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum. 
 (b) Each of the Parties
(i) consent to submit itself to the exclusive personal jurisdiction and venue of the Delaware Court of Chancery and any state appellate court therefrom within the State of Delaware (unless the Delaware Court of Chancery shall decline to accept
jurisdiction over a particular matter, in which case, in any Delaware state or federal court within the State of Delaware) with respect to any suit (whether at law, in equity, in contract, in tort or otherwise) relating to or arising out of this
Agreement or any of the transactions contemplated hereby, (ii) agrees that it will not attempt to defeat or deny such personal jurisdiction or venue by motion or otherwise, (iii) agrees that it will not bring any such suit in any court
other than such courts of the State of Delaware, as described above (iv) irrevocably agrees that any such suit (whether at law, in equity, in contract, in tort or otherwise) shall be heard and determined exclusively in such courts of the State
of Delaware, as described above, (v) agrees to service of process in any such action in any manner prescribed by the Laws of the State of Delaware and (vi) agrees that service of process upon such Party in any Action shall be effective if
notice is given in accordance with Section 12. 
 (c) EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER
THIS AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. 
 Section 16. Interpretation.
As used herein, the words “hereof”, “herein”, “herewith” and words of similar import shall, unless otherwise stated, be construed to refer to this Agreement as a whole and not to any particular provision of this
Agreement, and the word “Section” refers to a Section of this Agreement unless otherwise specified. Whenever the words “include”, “includes” or “including” are used in this Agreement they shall be deemed to be
followed by the words “without limitation”. The definitions contained in this Agreement are applicable to the singular as well as the plural forms of such terms and to the masculine as well as to the feminine and neuter genders of such
terms. 
 Section 17. Termination of Rights. The provisions of this Agreement, except the provisions in Sections 4 and
5 of this Agreement, shall terminate upon the earlier of: (i) the first day that all Registrable Securities have been sold by all of the Holders; (ii) with regard to any specific Holder, the first day that such Holder no longer owns
any Registrable Securities; and (iii) the tenth anniversary of the date of this Agreement; provided, that the indemnification and contribution rights and obligations hereunder shall not terminate and shall survive forever. 

Section 18. No Effect Upon Credit Relationships. Notwithstanding anything herein to the contrary, nothing contained in this
Agreement shall affect, limit or impair the rights and remedies of the Investors or any of their Affiliates in its or their capacity as a lender to the Company or any of its Subsidiaries pursuant to any agreement, instrument or document under which
the Company or any of its Subsidiaries has borrowed or may borrow money or has incurred indebtedness (in such capacity, a “Lender”). Without limiting the generality of the foregoing, any Lender, while exercising its right as a
Lender will have no duty to consider (a) its status as a direct or indirect stockholder of the Company, (b) the interests of the Company or (c) any duty it may have to any other direct or indirect stockholders of the Company, except
as may be required under the applicable loan documents or by commercial law applicable to creditors generally. 
 [SIGNATURE PAGE FOLLOWS]

 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as an instrument
under seal as of the date and year first above written. 
  

			
	LIGHTING SCIENCE GROUP CORPORATION
		
	By:	 	/s/ Thomas C. Shields
	Name:	 	Thomas C. Shields
	Title:	 	Chief Financial Officer

 Signature page to Registration Rights Agreement 

 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as an instrument
under seal as of the date and year first above written. 
  

			
	MEDLEY CAPITAL CORPORATION
		
	 By:
	 	/s/ Richard T. Allorto
	 Name:
	 	Richard T. Allorto
	 Title:
	 	Chief Financial Officer
	  
 MEDLEY OPPORTUNITY FUND II LP

		
	 By:
	 	/s/ Richard T. Allorto
	 Name:
	 	Richard T. Allorto
	 Title:
	 	Chief Financial Officer

 Signature page to Registration Rights AgreementWarrant

 Exhibit 4.4 

Execution Version 
 THE SECURITIES
REPRESENTED BY THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES REPRESENTED BY THIS WARRANT HAVE BEEN ACQUIRED FOR INVESTMENT AND
MAY NOT BE OFFERED, SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES
ACT OR APPLICABLE STATE SECURITIES LAWS UNLESS SOLD PURSUANT TO RULE 144 UNDER THE SECURITIES ACT. THE SECURITIES REPRESENTED BY THIS WARRANT ARE SUBJECT TO THE TERMS AND CONDITIONS OF, AND MAY ONLY BE TRANSFERRED IN ACCORDANCE WITH, THE TERMS OF
THIS WARRANT. 
 LIGHTING SCIENCE GROUP CORPORATION 

WARRANT TO PURCHASE COMMON STOCK 
  

			
	Warrant No.: PG1	  	Number of Shares: 5,000,000                    
	Issuance Date: February 19, 2014	  	

 THIS CERTIFIES THAT, for value received, Pegasus Capital Partners IV, L.P. or its Affiliates and successors
(the “Holder”) is entitled to purchase from Lighting Science Group Corporation, a Delaware corporation (the “Company”), at any time and from time to time during the applicable Warrant Exercise Period (defined below)
at the Exercise Price (defined below) up to five million (5,000,000) fully paid nonassessable shares of Common Stock (defined below) (the “Warrant Shares”), all subject to adjustment and upon the terms and conditions provided
herein. This Warrant is being issued to the Holder in connection with that certain Guaranty, by Pegasus Capital Partners IV, L.P. and Pegasus Capital Partners V, L.P., in favor of Agent (the “Sponsor Guaranty”) given in connection
with the Company’s entry into that certain Term Loan Agreement, by and among Medley Capital Corporation, as administrative agent, the lenders party thereto and the Company, as borrower (the “Term Loan”). 

Section 1. Definitions. 

The following terms as used in this Warrant have the following meanings: 

 

	 	(a)	“Acquiring Entity” has the meaning attributed to it in Section 8(a). 

  

	 	(b)	“Adjustment Price” means, as of the applicable date of determination, the lower of (i) the Exercise Price then in effect or (ii) the then current Fair Market Value (after applying a discount
of 10% thereto) per share of Common Stock. 

	 	(c)	“Affiliate” of, or a Person “Affiliated” with, a specified Person, is a Person that directly, or indirectly through one or more intermediaries, controls, or is controlled by, or is
under common control with, the Person specified. 

  

	 	(d)	“Agreement” has the meaning attributed to it in the preamble of this Warrant. 

  

	 	(e)	“Business Day” means any day other than Saturday, Sunday or federal holiday. 

  

	 	(f)	“Cheap Stock Issued” has the meaning attributed to it in Section 7(c). 

  

	 	(g)	“Change of Control” means (a) the sale, conveyance or disposition of all or substantially all of the assets of the Company (other than pursuant to a joint venture arrangement or other transaction
in which the Company, directly or indirectly, receives at least fifty percent (50%) of the voting equity in another entity or a general partnership); (b) the effectuation of a transaction or series of related transactions in which more
than fifty percent (50%) of the voting power of the Company is disposed of (other than (i) as a direct result of normal, uncoordinated trading activities in the Common Stock generally or (ii) solely as a result of the disposition by a
stockholder of the Company to an Affiliate of such stockholder); (c) the consolidation, merger or other business combination of the Company with or into any other entity, immediately following which the prior stockholders of the Company fail to
own, directly or indirectly, at least fifty percent (50%) of the voting equity of the surviving entity; (d) a transaction or series of transactions in which any Person or “group” (as such term is used in Sections 13(d) and 14(d)
of the Exchange Act) acquires more than fifty percent (50%) of the voting equity of the Company (other than the acquisition by a person or “group” that is an Affiliate of or Affiliated with a person or “group” that
immediately prior to such acquisition, beneficially owned fifty percent (50%) or more of the voting equity of the Company); (e) the replacement of a majority of the Company’s Board of Directors with individuals who were not nominated
or elected by at least a majority of the directors at the time of such replacement; or (f) a transaction or series of transactions that constitutes or results in a “going private transaction” (as defined in Section 13(e) of the
Exchange Act and the regulations of the Securities and Exchange Commission issued thereunder). 

  

	 	(h)	“Charter Amendment Effective Date” means the effective date of filing with the Secretary of State of the State of Delaware of the contemplated amendment to the Company’s Certificate of
Incorporation to increase the number of authorized shares of Common Stock of the Company to such number as shall be sufficient to permit the reservation in full of shares of Common Stock underlying all of the Company’s then outstanding
Derivative Securities. 

  

	 	(i)	“Common Stock” means (i) the Company’s common stock, $0.001 par value per share, and (ii) any capital stock into which the Common Stock is changed or any capital stock resulting from a
reclassification of the Common Stock. 

  
 2 

	 	(j)	“Delivery Date” has the meaning attributed to it in Section 2(c). 

  

	 	(k)	“Derivative Security” means any right, option, warrant or other security convertible into or exercisable for Common Stock. 

 

	 	(l)	“Exchange Act” means the Securities Exchange Act of 1934, as amended. 

  

	 	(m)	“Exercise Date” has the meaning attributed to it in Section 2(c). 

  

	 	(n)	“Exercise Documents” has the meaning attributed to it in Section 2(c). 

  

	 	(o)	“Exercise Notice” has the meaning attributed to it in Section 2(a). 

  

	 	(p)	“Exercise Price” is equal to $0.50, subject to adjustment as set forth in this Warrant. 

  

	 	(q)	“Fair Market Value” with respect to Common Stock means the VWAP of the Common Stock for the thirty days preceding the issuance of such shares of Common Stock, or Derivative Securities.

  

	 	(r)	“Issuance Date” means February 19, 2014. 

  

	 	(s)	“Ownership Ratio” has the meaning attributed to it in Section 7(c). 

  

	 	(t)	“Payment” has the meaning attributed to it in Section 2(a). 

  

	 	(u)	“Person” means a natural person or entity, or a government or any division, department or agency thereof. 

  

	 	(v)	“Registration Rights Agreement” has the meaning attributed to it in Section 9. 

  

	 	(w)	“Securities Act” means the Securities Act of 1933, as amended. 

  

	 	(x)	“Subscription Agreements” has the meaning attributed to it in Section 7(d). 

  

	 	(y)	“Trading Market” has the meaning attributed to it in Section 7(c). 

  

	 	(z)	“VWAP” has the meaning attributed to it in Section 7(c). 

  

	 	(aa)	“Warrant” means this Warrant and all Warrants issued in exchange, transfer or replacement thereof. 

  

	 	(bb)	“Warrant Exercise Period” means the period beginning at 12:01 a.m. on the Charter Amendment Effective Date and ending at 11:59 p.m. on February 19, 2024. 

 

	 	(cc)	“Warrant Shares” has the meaning attributed to it in the preamble of this Warrant. 

  
 3 

 Section 2. Exercise of Warrant. 

(a) This Warrant may be exercised for Warrant Shares, in whole or in part, by the Holder registered on the books of the Company at any time
during the Warrant Exercise Period. Any exercise of this Warrant shall be effected by: 
 (i) delivery of a written notice,
in the form attached as Exhibit A (the “Exercise Notice”), of Holder’s election to exercise this Warrant, specifying the number of Warrant Shares to be purchased; 

(ii) payment to the Company of an amount equal to the Exercise Price multiplied by the number of Warrant Shares being
purchased, in cash or by wire transfer of immediately available funds (the foregoing methods of payment, including any combination of such methods, referred to herein as the “Payment”); and 

(iii) the surrender at the principal office of the Company or to a nationally recognized courier for overnight delivery to the
Company, simultaneously with or as soon as practicable following the delivery of the Exercise Notice and the Payment, of this Warrant (or a customary indemnification undertaking with respect to this Warrant in the case of its loss, theft or
destruction). 
 (b) In lieu of or in addition to exercising this Warrant and making the Payment in cash or by wire transfer pursuant to
Section 2(a)(ii), the Holder may elect to make the Payment by means of receiving shares of Common Stock equal to the value of this Warrant (or portion thereof being exercised) by delivery and surrender of the Warrant together with the
Exercise Notice in accordance with the terms hereof, duly completed to indicate a net issuance exercise and executed by the Holder, in which event the Company shall issue to the Holder a number of shares of Common Stock computed using the following
formula: 
 S = WS * ((FMV – E) / FMV) 

where: 
  

	 	S	equals the number of shares of Common Stock to be issued as Warrant Shares to the Holder; 

  

	 	WS	means, as of any date, the number of Warrant Shares purchase (or portion thereof) under this Warrant that are being exercised at the applicable date of determination; 

 

	 	FMV	means, as of any date, the Fair Market Value per share of Common Stock on the Trading Day immediately preceding the Exercise Date; and 

 

	 	E	means the Exercise Price. 

  
 4 

 (c) The Company shall, not later than the fifth Business Day (the “Delivery
Date”) following receipt of an Exercise Notice, the Payment and this Warrant or such indemnification (collectively, the “Exercise Documents”), arrange for its transfer agent, on or before the Delivery Date, to issue and
surrender to a nationally recognized courier for overnight delivery to the address specified in the Exercise Notice, a certificate, registered in the name of the Holder or its permitted designee, for the number of shares of Common Stock to which the
Holder is entitled. Upon delivery of the Exercise Notice and the Payment (the “Exercise Date”), the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares with respect to which
this Warrant has been exercised on the Delivery Date, irrespective of the date of delivery of the certificates evidencing such Warrant Shares. 

(d) Unless the rights represented by this Warrant have expired or been fully exercised, the Company shall, as soon as practicable and in no
event later than five Business Days after receipt of the Exercise Documents and at its own expense, issue a new Warrant identical in all respects to this Warrant, except it shall represent rights to purchase the number of Warrant Shares purchasable
immediately prior to exercise, less the number purchased. 
 Section 3. Representations, Warranties, Covenants and Agreements.
The Company hereby represents, warrants, covenants and agrees, as applicable, as follows: 
 (a) This Warrant is, and any Warrants issued in
substitution for or in replacement of this Warrant upon issuance will be, duly authorized, executed and delivered. 
 (b) All Warrant Shares
issuable upon exercise of this Warrant will be duly authorized, and upon issuance will be validly issued, fully paid and nonassessable, issued without violation of any preemptive or similar rights of any stockholder of the Company and free from all
liens (which term does not include any restrictions imposed by applicable securities laws) and charges with respect to the issue thereof. 

(c) During the Warrant Exercise Period, the Company will at all times have authorized and reserved for issuance and delivery upon exercise of
the Warrant at least the number of shares of Common Stock needed to provide for the exercise in full of the rights then represented by this Warrant. 

(d) The Company shall pay all expenses in connection with, and all taxes and other governmental charges that may be imposed with respect to,
the issuance or delivery of Warrant Shares upon exercise of the Warrants. 
 (e) The Company will ensure that the Warrant Shares may be
issued without violation of any law or regulation applicable to the Company or of any requirement of any securities exchange applicable to the Company on which the shares of Common Stock are listed or traded. 

Section 4. Warrant Holder Not Deemed a Stockholder. Nothing contained in this Warrant shall be construed to (a) grant the
Holder any rights to vote or receive dividends or be deemed the holder of shares of the Company for any purpose, (b) confer upon the Holder any of the rights of a 

  
 5 

 
stockholder of the Company or any right to vote, give or withhold consent to any corporate action (whether any reorganization, issue of stock, reclassification of stock, consolidation, merger,
conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise, or (c) impose any liabilities on the Holder to purchase any securities or as a stockholder of the Company, whether asserted by the
Company or creditors of the Company, prior to the issuance of the Warrant Shares. 
 Section 5. Representations of Holder. The
Holder, by the acceptance hereof, represents that it is acquiring this Warrant and the Warrant Shares for its own account for investment only and not with a view towards, or for resale in connection with, the public sale or distribution of this
Warrant or the Warrant Shares, except pursuant to sales registered or exempted under the Securities Act. Upon exercise of this Warrant, the Holder shall, if requested by the Company, confirm in writing, in a form satisfactory to the Company, that
the Warrant Shares are being acquired solely for the Holder’s own account and not as a nominee for any other party, for investment, and not with a view toward distribution or resale. If Holder cannot make such representations because they would
be factually incorrect, it shall be a condition to Holder’s exercise of this Warrant that the Company receives such other representations as the Company considers reasonably necessary to assure the Company that the issuance of its securities
upon exercise of this Warrant shall not violate any federal or state securities laws. The Company shall not be penalized or disadvantaged by the Holder’s inability to exercise this Warrant due to its inability to make the required
representations in connection with the exercise of this Warrant. 
 Section 6. Ownership and Transfer. 

(a) The Company shall maintain at its principal executive offices (or such other office or agency of the Company as it may designate by notice
to the holder hereof), a register for this Warrant, in which the Company shall record the name and address of the Person in whose name this Warrant has been issued, as well as the name and address of each transferee who has acquired this Warrant in
accordance with applicable law and the terms of this Warrant. The Company may treat the Person in whose name this Warrant is registered on the register as the owner and holder thereof for all purposes, notwithstanding any notice to the contrary, but
in all events recognizing any transfers made in accordance with the terms of this Warrant. 
 (b) This Warrant may not be transferred or
assigned except to an Affiliate or a successor of the Holder or in connection with a transfer by the Holder of all or any portion of its obligations pursuant to the Sponsor Guranty in which case this Warrant may be transferred or assigned to any
transferee(s) of such Sponsor Guaranty. Subject to the terms of this Section 6, upon surrender of this Warrant to the Company at its principal office or at the office of its transfer agent, if any, with the Assignment Form annexed hereto
as Exhibit B duly executed and funds sufficient to pay any transfer tax, the Company shall, without charge, execute and deliver a new Warrant in the name of the transferee evidencing the portion of the Warrant certificate so transferred and a new
Warrant certificate evidencing the remaining portion of the Warrant certificate not so transferred, if any, shall be issued to the transferring Holder. The delivery of the new Warrant certificate by the Company to the transferee thereof shall be
deemed to constitute acceptance by such transferee of all of the rights and obligations of a holder of a Warrant certificate. Subject to the terms of this Section 6, this Warrant may be divided or combined with other warrants which carry
the same rights upon presentation hereof at the principal office of the Company together with a written notice specifying the names and denominations in which new Warrants are to be issued and signed by the Warrant Holder hereof. 

  
 6 

 (c) Warrant Shares may only be offered, sold, transferred or assigned in compliance with
applicable federal and state law. 
 Section 7. Adjustment of Exercise Price and Number of Shares. The Exercise Price and the
number of Warrant Shares shall be adjusted from time to time as follows: 
 (a) Stock Splits. If the Company subdivides (by any stock
split, recapitalization or otherwise) its outstanding shares of Common Stock into a greater number of shares, the Exercise Price in effect immediately prior to the subdivision will be proportionately reduced and the number of Warrant Shares will be
proportionately increased. If the Company combines (by combination, reverse stock split or otherwise) its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to the combination will be
proportionately increased and the number of Warrant Shares will be proportionately decreased. Any adjustment under this Section 7(a) shall become effective at the close of business on the date the subdivision or combination becomes
effective. 
 (b) Stock Dividends. If the Company declares a dividend or any other distribution upon the Common Stock that is payable
in shares of Common Stock or Derivative Securities, the number of Warrant Shares will be proportionately increased and the Exercise Price in effect immediately prior to the declaration of the dividend or distribution will be reduced to the quotient
obtained by dividing (i) the number of shares of Common Stock outstanding immediately prior to the declaration multiplied by the then effective Exercise Price by (ii) the total number of shares of Common Stock outstanding immediately after
the declaration. 
 (c) Issuance of Common Stock Below Adjustment Price. Subject to the provisions of Section 7(d)
hereof, if the Company shall issue or sell shares of Common Stock, or Derivative Securities containing the right to subscribe for or purchase shares of Common Stock, to an Affiliate or controlling Person of the Company at a price per share
(determined, in the case of such Derivative Securities, by dividing (A) the total amount receivable by the Company in consideration of the issuance and sale of such Derivative Securities, plus the total consideration, if any, payable to the
Company upon exercise, conversion or exchange thereof, by (B) the total number of shares of Common Stock covered by such Derivative Securities) that is lower than the Adjustment Price in effect immediately prior to such sale or issuance, then
(1) the number of Warrant Shares thereafter issuable upon the exercise of this Warrant shall be increased by adding the number of Warrant Shares theretofore issuable upon exercise of this Warrant to the product of (x) the Cheap Stock
Issued (defined below), multiplied by (y) the Ownership Ratio (defined below); and (2) the Exercise Price shall be reduced by multiplying the then current Exercise Price by a fraction of which, the numerator shall be the number of Warrant
Shares issuable immediately prior to such sale or issuance and the denominator of which shall be the number of Warrant Shares issuable after adjustment pursuant to clause (1), above. Such adjustment shall be made successively whenever any such sale
or issuance is made. 

  
 7 

 “Cheap Stock Issued” shall be the number of additional shares of Common Stock
issued by the Company as described above minus the number of shares of Common Stock that the aggregate offering price of the total number of shares of Common Stock so issued would purchase at the Adjustment Price per share of Common Stock. 

“Fair Market Value” shall be equal the average VWAP of the Common Stock for the thirty days preceding the issuance of such
shares of Common Stock, or Derivative Securities. 
 “Ownership Ratio” shall be a fraction, the numerator of which shall be
the number of Warrant Shares prior to such time issuable upon exercise of this Warrant, and the denominator of which shall be the number of shares of Common Stock then outstanding on the date of issuance or sale of such shares of Common Stock or
such Derivative Securities. For purposes of such adjustments, the shares of Common Stock which the holder of any such Derivative Securities shall be entitled to subscribe for or purchase (assuming the exercise or conversion of any such Derivative
Securities for cash (not on a “cashless” basis)) shall be deemed to be issued and outstanding as of the date of the sale and issuance of the rights, warrants or convertible or exchangeable securities. 

“Trading Market” means the following markets or exchanges on which the Common Stock is listed or quoted for trading on the
date in question: the NYSE Amex Equities, The Nasdaq Capital Market, The Nasdaq Global Market, The Nasdaq Global Select Market, the New York Stock Exchange or the OTC Bulletin Board. 

“VWAP” means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common
Stock is then listed or quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Trading Market on which the Common Stock is then listed or quoted for trading as
reported by Bloomberg L.P. (based on a Trading Day from 9:30 a.m. (New York City time) to 4:02 p.m. (New York City time); (b) if the OTC Bulletin Board is not a Trading Market, the volume weighted average price of the Common Stock for such date
(or the nearest preceding date) on the OTC Bulletin Board; (c) if the Common Stock is not then quoted for trading on the OTC Bulletin Board and if prices for the Common Stock are then reported in the “Pink Sheets” published by Pink
Sheets, LLC (or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported; or (d) in all other cases, the fair market value of a share of Common Stock
as determined by an independent appraiser selected in good faith by the Holder and reasonably acceptable to the Company, the fees and expenses of which shall be paid by the Company. 

(d) Section 7(c) shall not apply to: securities or Derivative Securities issued or issuable to Affiliates or controlling Persons
of the Company (i) who are employees, officers, directors, consultants or other service providers of the Company pursuant to a plan or agreement approved by the board of directors, including the Lighting Science Group Corporation Amended and
Restated Equity-Based Compensation Plan, (ii) to settle the Company’s directors’ fees, (iii) pursuant to the exercise or conversion or exchange of Derivative Securities, restricted stock, or other derivative instruments of the
Company, (iv) as a dividend on preferred stock of the Company, (v) pursuant to an acquisition of shares or assets of a target company at a value not less than the fair market value as determined by the board of directors of the Company
acting in good faith, (vi) in connection 

  
 8 

 
with a strategic commercial agreement or commercial relationship at a value not less than the fair market value as determined by the board of directors of the Company acting in good faith,
(vii) pursuant to the right of the Company to issue securities in Subsequent Offerings (as such term is defined in each of the Series J Subscriptions Agreements, dated as of January 3, 2013, by and between the Company and each of LSGC
Holdings II LLC, PCA LSG Holdings, LLC, RW LSG Holdings LLC, Cleantech Europe II (A) LP and Cleantech Europe II (B) LP (collectively, the “Subscription Agreements”), (viii) pursuant to the Rights Offering (as such
term is defined in each of the Subscription Agreements) or (ix) pursuant to the exercise of any preemptive rights arising from the issuance of securities contemplated by the Subscription Agreements or by that certain Preferred Stock
Subscription Agreement, dated as of September 11, 2013, by and between the Company, LSGC Holdings II LLC, PCA LSG Holdings, LLC and RW LSG Holdings LLC. 

Section 8. Purchase Rights; Reorganization, Reclassification, Consolidation, Merger or Sale. Upon the consummation of any
(i) sale of all or substantially all of the Company’s assets to an acquiring Person or (ii) other Change of Control, the Company will secure from the Person purchasing the assets or the successor resulting from the Change of Control
(in each case, the “Acquiring Entity”) a written agreement to deliver to the Holder, in exchange for this Warrant, a security of the Acquiring Entity evidenced by a written instrument substantially similar in form and substance to
this Warrant and reasonably satisfactory to the Holder. Prior to the consummation of any other Change of Control, the Company shall make appropriate provision to insure that the Holder will thereafter have the right to acquire and receive, in lieu
of the shares of Common Stock immediately theretofore acquirable and receivable upon the exercise of this Warrant, such shares of stock, securities or assets that would have been issued or payable in the Change of Control with respect to or in
exchange for the number of Warrant Shares that would have been acquirable as of the date of the Change of Control. 
 Section 9.
Registration Rights Agreement. The Company and the Holder (or an Affiliate thereof) are parties to that certain Amended and Restated Registration Rights Agreement, dated as of January 23, 2009, as further amended as of May 25, 2012
(the “Registration Rights Agreement”), and the Company hereby acknowledges and affirms that the Holder and its Affiliates shall have all rights set forth in the Registration Rights Agreement. 

Section 10. Lost, Stolen, Mutilated or Destroyed Warrant. If this Warrant is lost, stolen, mutilated or destroyed, the Company
shall promptly, on receipt of an indemnification undertaking reasonably satisfactory to the Company (or, in the case of a mutilated Warrant, the Warrant), issue a new Warrant of like denomination and tenor as this Warrant so lost, stolen, mutilated
or destroyed. 
 Section 11. Notice. Any notices, consents, waivers or other communications required or permitted to be given
under the terms of this Warrant must be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when sent by fax or email transmittal (provided confirmation of transmission is
mechanically or electronically generated and kept on file by the sending party); or (iii) one Business Day after deposit with a nationally recognized overnight delivery service, in each case properly addressed to the party to receive the same.
The addresses, fax numbers and email addresses for communications shall be: 

  
 9 

 If to the Company: 

Lighting Science Group Corporation 

Attention: Thomas C. Shields, Chief Financial Officer 

1227 South Patrick Drive 

Building 2A 
 Satellite Beach, FL
32937 
 Tel: (321) 779-5520 

Fax: (321) 779-5521 
 Email:
tom.shields@lsgc.com 
 with a copy (which shall not constitute notice) to: 

Haynes and Boone, LLP 
 2323
Victory Avenue, Suite 700 
 Dallas, TX 75219 

Tel: (214) 651-5273 
 Fax:
(214) 200-0534 
 Attention: Ryan R. Cox, Esq. 

Email: ryan.cox@haynesboone.com 

If to the Holder: 
 Pegasus
Capital Partners IV, L.P. 
 c/o Pegasus Capital Advisors, L.P. 

99 River Road 
 Cos Cob, CT 06807

 Attention: Steven Wacaster 

Tel: (212) 710-2509 
 Email:
swacaster@pcalp.com 
 with a copy (which shall not constitute notice) to: 

Akin Gump Strauss Hauer & Feld LLP 

One Bryant Park 
 New York, NY
10036 
 Attention: Jeffrey Kochian 

Tel: (212) 872-8069 
 Fax:
(212) 872-1002 
 Email: jkochian@akingump.com 

Each party shall provide five days’ prior written notice to the other party of any change in address or fax number or email address.
Written confirmation of receipt (A) given by the recipient of any notice, consent, waiver or other communication, (B) mechanically or electronically generated by the sender’s fax machine or computer containing the time, date,
recipient fax number or email address and an image of the first page of the fax transmission or the content of the email, or (C) provided by a nationally recognized overnight delivery service, shall be rebuttable evidence of receipt. 

  
 10 

 Section 12. Amendment and Waiver. This Warrant may not be modified or amended except
pursuant to an instrument in writing signed by the Company and the Holder. No provision hereunder may be waived other than in a written instrument executed by the waiving party. 

Section 13. Governing Law. This Warrant shall be construed and enforced in accordance with, and all questions concerning the
construction, validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of Delaware, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of
Delaware or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Delaware. 

Section 14. Restrictive Legends. At all times this Warrant, and until such time as a registration statement has been declared
effective by the U.S. Securities and Exchange Commission or the Warrant Shares may be sold pursuant to Rule 144 under the Securities Act without any restriction as to the number of securities that can then be immediately sold, certificates for any
Warrant Shares will, in addition to any legend required under applicable securities law, bear a restrictive legend substantially in the form set forth on the first page of this Warrant. 

*** 

  
 11 

 IN WITNESS WHEREOF, the Company has caused this Warrant to be signed as of February 19,
2014. 
  

			
	LIGHTING SCIENCE GROUP CORPORATION
		
	By:	 	/s/ Thomas C. Shields
	Name:	 	Thomas C. Shields
	Title:	 	Chief Financial Officer

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