Exhibit 4.3



 Exhibit 4.3 

ECHELON CORPORATION 

2016 INDUCEMENT EQUITY INCENTIVE PLAN 

STOCK OPTION AGREEMENT 

By executing the Grant Acceptance process and using the services on this Morgan Stanley Smith Barney Benefit Access® website, you, the Participant (“Participant”) and Echelon Corporation (the “Company”) agree that this Award is granted under and governed by the terms and conditions of
Company’s 2016 Inducement Equity Incentive Plan (the “Plan”) and the Terms and Conditions of the Stock Option Agreement (the “Option Agreement”), which may be amended or modified from time to time. Participant has reviewed
the Plan and this Option Agreement in its entirety, has had an opportunity to obtain the advice of counsel prior to accepting this Award and fully understands provisions of the Plan and this Option Agreement. Participant hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the Administrator upon any questions relating to the Plan and this Option Agreement. Participant further agrees to promptly notify the Company upon any change in Participant’s
residence address. PLEASE BE SURE TO READ ALL OF THE PROVISIONS FOR YOUR COUNTRY (IF ANY) IN APPENDIX A THAT CONTAINS SPECIAL TERMS AND CONDITIONS OF THIS AWARD APPLICABLE TO YOU. 

 
  

The Company hereby grants you, the Participant, a stock option (the “Option”) under the Plan, to exercise in exchange for a payment from the Company
pursuant to this Option Agreement. However, as provided in the Option Agreement, this Option may expire earlier than the Expiration Date. 
 Unless
otherwise defined herein, the terms defined in the Plan shall have the same defined meanings in this Option Agreement. 

  
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 EXHIBIT A 

TERMS AND CONDITIONS OF THE STOCK OPTION AGREEMENT 

1. Grant of Option. The Company hereby grants to the Participant named in the Grant Summary the Option to purchase the number of
Shares, as set forth in the Grant Summary, at the exercise price per Share set forth in the Grant Summary (the “Exercise Price”), subject to the terms and conditions in this Option Agreement and the Plan, which is incorporated herein by
reference. Subject to Section 18(c) of the Plan, in the event of a conflict between the terms and conditions of the Plan and the terms and conditions of this Option Agreement, the terms and conditions of the Plan will prevail. 

2. Vesting Schedule. Except as provided in Section 4 [or as set forth on Schedule
1]1, the Option awarded by this Option Agreement will vest in accordance with the following schedule: twenty-five (25%) of the Shares subject to the Option shall vest on each annual anniversary of
the Vesting Commencement Date, subject to Participant continuing to be a Service Provider through each such date. 
 Shares scheduled to
vest on a certain date or upon the occurrence of a certain condition will not vest in Participant in accordance with any of the provisions of this Option Agreement, unless Participant will have been continuously a Service Provider from the date of
grant until the date such vesting occurs. 
 Notwithstanding anything in this Section 2 to the contrary, and except as otherwise provided by
the Administrator, vesting of the Option will be suspended during any unpaid leave of absence other than military leave and will resume on the date Participant returns to work on a regular schedule as determined by the Company; provided, however,
that no vesting credit will be awarded for the time vesting has been suspended during such leave of absence. The Administrator, in its discretion, may accelerate the vesting of the balance, or some lesser portion of the balance, of the Option at any
time, subject to the terms of the Plan. If so accelerated, such Option (or the portion thereof) will be considered as having vested as of the date specified by the Administrator. 

3. Termination Period. This Option will be exercisable for thirty (30) days after Participant ceases to be a Service Provider,
unless such termination is due to Participant’s death or Disability, in which case this Option will be exercisable for twelve (12) months after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no
event may this Option be exercised after the Term/Expiration Date as provided above and may be subject to earlier termination as provided in Section 13 of the Plan. 

4. Administrator Discretion. The Administrator, in its discretion, may accelerate the vesting of the balance, or some lesser
portion of the balance, of the unvested Option at any time, subject to the terms of the Plan. If so accelerated, such Option will be considered as having vested as of the date specified by the Administrator. 

 

	1 	Officers only. 


  
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 5. Exercise of Option. 

(a) Right to Exercise. This Option may be exercised only within the term set out in Section 2, and may be exercised during such
term only in accordance with the Plan and the terms of this Option Agreement. 
 (b) Method of Exercise. This Option is
exercisable by delivery of an exercise notice, in the form attached as Exhibit B (the “Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which will state the election to exercise
the Option, the number of Shares in respect of which the Option is being exercised (the “Exercised Shares”), and such other representations and agreements as may be required by the Company pursuant to the provisions of the Plan. The
Exercise Notice will be completed by Participant and delivered to the Company. The Exercise Notice will be accompanied by payment of the aggregate Exercise Price as to all Exercised Shares together with any applicable tax withholding. This Option
will be deemed to be exercised upon receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price. 

6. Method of Payment. Payment of the aggregate Exercise Price will be by any of the following, or a combination thereof, at the
election of Participant: 
 (a) cash; 

(b) check; 
 (c) consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or 
 (d) surrender of
other Shares which have a fair market value on the date of surrender equal to the aggregate Exercise Price of the Exercised Shares, provided that accepting such Shares, in the sole discretion of the Administrator, will not result in any adverse
accounting consequences to the Company. 
 7. Tax Obligations. 

(a) Tax-Related Items. Participant acknowledges that, regardless of any action taken by the Company or, if different,
Participant’s employer (the “Employer”), the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to Participant’s participation in the
Plan and legally applicable to Participant (“Tax-Related Items”), is and remains Participant’s responsibility and may exceed the amount actually withheld by the Company or the Employer. Participant further acknowledges that the
Company and/or the Employer (i) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of the Option, including, but not limited to, the grant, vesting or exercise of the Option, the
subsequent sale of Exercised Shares acquired pursuant to such exercise and the receipt of any dividends; and (ii) do not commit to and are under no obligation to structure the terms of the grant or any aspect of the Option to reduce or eliminate
Participant’s liability for Tax-Related Items or achieve any particular tax result. Further, if Participant is subject to Tax-Related Items in more than one jurisdiction between the date of grant and the date of any relevant taxable or tax
withholding event, as applicable, Participant acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction. 

  
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 Prior to any relevant taxable or tax withholding event, as applicable, Participant agrees to make
adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. 
 Finally, Participant agrees to
pay to the Company or the Employer any amount of Tax-Related Items that the Company or the Employer may be required to withhold or account for as a result of Participant’s participation in the Plan that cannot be satisfied by the means
previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares, if Participant fails to comply with his or her obligations in connection with the Tax-Related Items. 

(b) Tax Withholding. When the Option is exercised, Participant generally will recognize immediate U.S. taxable income if
Participant is a U.S. taxpayer. If Participant is a non-U.S. taxpayer, Participant will be subject to applicable taxes in his or her jurisdiction. Pursuant to such procedures as the Administrator may specify from time to time, the Company and/or
Service Recipient shall withhold the minimum amount required to be withheld for the payment of Tax Obligations or a greater amount if that amount would not trigger adverse financial accounting consequences. The Administrator, in its sole discretion
and pursuant to such procedures as it may specify from time to time, may permit Participant to satisfy such Tax Obligations, in whole or in part (without limitation), if permissible by applicable local law, by (i) paying cash,
(ii) electing to have the Company withhold otherwise deliverable Shares having a fair market value equal to the amount of such Tax Obligations, (iii) withholding the amount of such Tax Obligations from Participant’s wages or other
cash compensation paid to Participant by the company and/or the Service Recipient, (iv) delivering to the Company already vested and owned Shares having a fair market value equal to such Tax Obligations, or (v) selling a sufficient number
of such Shares otherwise deliverable to Participant through such means as the Company may determine in its sole discretion (whether through a broker or otherwise) equal to the amount of the Tax Obligations. To the extent determined appropriate by
the Company in its discretion, it will have the right (but not the obligation) to satisfy any Tax Obligations by reducing the number of Shares otherwise deliverable to Participant. Further, if Participant is subject to tax in more than one
jurisdiction between the Date of Grant and a date of any relevant taxable or tax withholding event, as applicable, Participant acknowledges and agrees that the Company and/or the Service Recipient (and/or former employer, as applicable) may be
required to withhold or account for tax in more than one jurisdiction. If Participant fails to make satisfactory arrangements for the payment of any required Tax Obligations hereunder at the time of the Option exercise, Participant acknowledges and
agrees that the Company may refuse to honor the exercise and refuse to deliver the Shares if such amounts are not delivered at the time of exercise. 

(c) Code Section 409A. To the extent Participant is or becomes a U.S. taxpayer, this subsection will apply. Under Code Section 409A, a
stock right (such as the Option) that vests after December 31, 2004 (or that vested on or prior to such date but which was materially modified after October 3, 2004) that was granted with a per share exercise price that is determined by the Internal
Revenue Service (the “IRS”) to be less than the fair market value of an underlying share on the date of grant (a “discount stock right”) may be considered “deferred compensation.” A stock right that is a “discount
stock right” may result in (i) income 

  
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recognition by the recipient of the stock right prior to the exercise of the stock right, (ii) an additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest
charges. The “discount stock right” may also result in additional state income, penalty and interest tax to the recipient of the stock right. Participant acknowledges that the Company cannot and has not guaranteed that the IRS will agree
that the per Share exercise price of this Option equals or exceeds the fair market value of a Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option was granted with a per Share exercise
price that was less than the fair market value of a Share on the date of grant, Participant shall be solely responsible for Participant’s costs related to such a determination. 

8. Rights as Stockholder. Neither Participant nor any person claiming under or through Participant will have any of the rights or
privileges of a stockholder of the Company in respect of any Shares deliverable hereunder unless and until certificates representing such Shares will have been issued, recorded on the records of the Company or its transfer agents or registrars, and
delivered to Participant. After such issuance, recordation and delivery, Participant will have all the rights of a stockholder of the Company with respect to voting such Shares and receipt of dividends and distributions on such Shares. 

9. No Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE VESTING
SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE AFFILIATE EMPLOYING OR RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR ACQUIRING SHARES HEREUNDER.
PARTICIPANT FURTHER ACKNOWLEDGES AND AGREES THAT THIS OPTION AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A SERVICE PROVIDER
FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND WILL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE AFFILIATE EMPLOYING OR RETAINING PARTICIPANT) TO TERMINATE PARTICIPANT’S RELATIONSHIP AS A
SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE. 
 10. Address for Notices. Any notice to be given to the Company under
the terms of this Option Agreement will be addressed to the Company, in care of its Stock Administrator at Echelon Corporation, 2901 Patrick Henry Drive, Santa Clara, CA 95054, or at such other address as the Company may hereafter designate in
writing. 
 11. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than by will or by the
laws of descent or distribution and may be exercised during the lifetime of Participant only by Participant. 
 12. Binding
Agreement. Subject to the limitation on the transferability of this grant contained herein, this Option Agreement will be binding upon and inure to the benefit of the heirs, legatees, legal representatives, successors and assigns of the
parties hereto. 

  
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 13. Additional Conditions to Issuance of Stock. If at any time the Company will
determine, in its discretion, that the listing, registration, qualification or rule compliance of the Shares upon any securities exchange or under any state, federal or foreign law, the tax code and related regulations or the consent or approval of
any governmental regulatory authority is necessary or desirable as a condition to the purchase by, or issuance of Shares to, Participant (or his or her estate) hereunder, such purchase or issuance will not occur unless and until such listing,
registration, qualification, rule compliance, consent or approval will have been completed, effected or obtained free of any conditions not acceptable to the Company. The Company will make all reasonable efforts to meet the requirements of any
such state, federal or foreign law or securities exchange and to obtain any such consent or approval of any such governmental authority or securities exchange. Assuming such compliance, for income tax purposes the Exercised Shares will be
considered transferred to Participant on the date the Option is exercised with respect to such Exercised Shares. 
 14. Plan
Governs. This Option Agreement is subject to all terms and provisions of the Plan. In the event of a conflict between one or more provisions of this Option Agreement and one or more provisions of the Plan, the provisions of the Plan will
govern. Capitalized terms used and not defined in this Option Agreement will have the meanings set forth in the Plan. 
 15.
Administrator Authority. The Administrator will have the power to interpret the Plan and this Option Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to
interpret or revoke any such rules (including, but not limited to, the determination of whether or not any Shares subject to the Option have vested). All actions taken and all interpretations and determinations made by the Administrator in good
faith will be final and binding upon Participant, the Company and all other interested persons. No member of the Administrator will be personally liable for any action, determination or interpretation made in good faith with respect to the Plan
or this Option Agreement. 
 16. Nature of Grant. In accepting the Option, Participant acknowledges, understands and agrees
that: 
 (a) the grant of the Option is voluntary and occasional and does not create any contractual or other right to receive future grants
of options, or benefits in lieu of options, even if options have been granted in the past; 
 (b) all decisions with respect to future
option or other grants, if any, will be at the sole discretion of the Company; 
 (c) Participant is voluntarily participating in the Plan;

 (d) the Option and any Shares acquired under the Plan are not intended to replace any pension rights or compensation; 

(e) the Option and Shares acquired under the Plan and the income and value of same, are not part of normal or expected compensation for
purposes of calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments; 

  
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 (f) the future value of the Shares underlying the Option is unknown, indeterminable, and cannot
be predicted with certainty; 
 (g) if the underlying Shares do not increase in value, the Option will have no value; 

(h) if Participant exercises the Option and acquires Shares, the value of such Shares may increase or decrease in value, even below the
Exercise Price; 
 (i) for purposes of the Option, Participant’s engagement as a Service Provider will be considered terminated as of
the date Participant is no longer actively providing services to the Company or any Parent or Subsidiary (regardless of the reason for such termination and whether or not later found to be invalid or in breach of employment laws in the jurisdiction
where Participant is a Service Provider or the terms of Participant’s employment or service agreement, if any), and unless otherwise expressly provided in this Option Agreement (including by reference in the Grant Summary to other arrangements
or contracts) or determined by the Administrator, (i) Participant’s right to vest in the Option under the Plan, if any, will terminate as of such date and will not be extended by any notice period (e.g., Participant’s period of
service would not include any contractual notice period or any period of “garden leave” or similar period mandated under employment laws in the jurisdiction where Participant is a Service Provider or Participant’s employment or
service agreement, if any, unless Participant is providing bona fide services during such time); and (ii) the period (if any) during which Participant may exercise the Option after such termination of Participant’s engagement as a Service
Provider will commence on the date Participant ceases to actively provide services and will not be extended by any notice period mandated under employment laws in the jurisdiction where Participant is employed or terms of Participant’s
engagement agreement, if any; the Administrator shall have the exclusive discretion to determine when Participant is no longer actively providing services for purposes of his or her Option grant (including whether Participant may still be considered
to be providing services while on a leave of absence); 
 (j) unless otherwise provided in the Plan or by the Company in its discretion, the
Option and the benefits evidenced by this Option Agreement do not create any entitlement to have the Option or any such benefits transferred to, or assumed by, another company nor to be exchanged, cashed out or substituted for, in connection with
any corporate transaction affecting the Shares; and 
 (k) the following provisions apply only if Participant is providing services outside
the United States: 
  

	 	(i)	the Option and the Shares subject to the Option are not part of normal or expected compensation or salary for any purpose; 

  

	 	(ii)	Participant acknowledges and agrees that none of the Company, the Service Recipient, or any Parent or Subsidiary shall be liable for any foreign exchange rate fluctuation between Participant’s local currency and
the United States Dollar that may affect the value of the Option or of any amounts due to Participant pursuant to the exercise of the Option or the subsequent sale of any Shares acquired upon exercise; and 


 

	 	(iii)	no claim or entitlement to compensation or damages shall arise from forfeiture of the Option resulting from the termination of Participant’s engagement as a Service Provider (for any reason whatsoever, whether or
not later found to be invalid or in breach of employment laws in the jurisdiction where Participant is a Service Provider or the terms of Participant’s employment or service agreement, if any), and in consideration of the grant of the Option to
which Participant is otherwise not entitled, Participant irrevocably agrees never to institute any claim against the Company, any Parent, any Subsidiary or the Service Recipient, waives his or her ability, if any, to bring any such claim, and
releases the Company, any Parent or Subsidiary and the Service Recipient from any such claim; if, notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, Participant shall be
deemed irrevocably to have agreed not to pursue such claim and agrees to execute any and all documents necessary to request dismissal or withdrawal of such claim. 


  
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 17. Data Privacy. Participant hereby explicitly
and unambiguously consents to the collection, use and transfer, in electronic or other form, of Participant’s personal data as described in this Option Agreement and any other Option grant materials by and among, as applicable, the Employer,
the Company and any Parent or Subsidiary for the exclusive purpose of implementing, administering and managing Participant’s participation in the Plan. 

Participant understands that the Company and the Employer may hold certain personal information about Participant, including, but not
limited to, Participant’s name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title, any Shares or directorships held in the Company, details of all Options or
any other entitlement to Shares awarded, canceled, exercised, vested, unvested or outstanding in Participant’s favor (“Data”), for the exclusive purpose of implementing, administering and managing the Plan. 

Participant understands that Data will be transferred to a stock plan service provider as may be selected by the Company in the future,
which is assisting the Company with the implementation, administration and management of the Plan. Participant understands that the recipients of the Data may be located in the United States or elsewhere, and that the recipient’s country of
operation (e.g., the United States) may have different data privacy laws and protections than Participant’s country. Participant understands that if he or she resides outside the United States, he or she may request a list with the names and
addresses of any potential recipients of the Data by contacting his or her local human resources representative. Participant authorizes the Company and any other possible recipients which may assist the Company (presently or in the future) with
implementing, administering and managing the Plan to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purposes of implementing, administering and managing


  
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Participant’s participation in the Plan. Participant understands that Data will be held only as long as is necessary to implement, administer and manage Participant’s participation in
the Plan. Participant understands that if he or she resides outside the United States, he or she may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse
or withdraw the consents herein, in any case without cost, by contacting in writing his or her local human resources representative. Further, Participant understands that he or she is providing the consents herein on a purely voluntary basis. If
Participant does not consent, or if Participant later seeks to revoke his or her consent, his or her engagement as a Service Provider and career with the Employer will not be adversely affected; the only adverse consequence of refusing or
withdrawing Participant’s consent is that the Company would not be able to grant Participant Options or other equity awards or administer or maintain such awards. Therefore, Participant understands that refusing or withdrawing his or her
consent may affect Participant’s ability to participate in the Plan. For more information on the consequences of Participant’s refusal to consent or withdrawal of consent, Participant understands that he or she may contact his or her local
human resources representative. 
 18. Language. If Participant has received this Option Agreement or any other document
related to the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control. 

19. Electronic Delivery. The Company may, in its sole discretion, decide to deliver any documents related to Options awarded under
the Plan or future options that may be awarded under the Plan by electronic means or request Participant’s consent to participate in the Plan by electronic means. Participant hereby consents to receive such documents by electronic delivery and
agrees to participate in the Plan through any on-line or electronic system established and maintained by the Company or a third party designated by the Company. 

20. Captions. Captions provided herein are for convenience only and are not to serve as a basis for interpretation or construction of
this Option Agreement. 
 21. Agreement Severable. In the event that any provision in this Option Agreement will be held invalid or
unenforceable, such provision will be severable from, and such invalidity or unenforceability will not be construed to have any effect on, the remaining provisions of this Option Agreement. 

22. Modifications to the Option Agreement. This Option Agreement constitutes the entire understanding of the parties on the subjects
covered. Participant expressly warrants that he or she is not accepting this Option Agreement in reliance on any promises, representations, or inducements other than those contained herein. Modifications to this Option Agreement or the Plan can
be made only in an express written contract executed by a duly authorized officer of the Company. Notwithstanding anything to the contrary in the Plan or this Option Agreement, the Company reserves the right to revise this Option Agreement as
it deems necessary or advisable, in its sole discretion and without the consent of Participant, to comply with Section 409A of the Code or to otherwise avoid imposition of any additional tax or income recognition under Section 409A of the Code in
connection with the Option. 

  
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 23. Amendment, Suspension or Termination of the Plan. By accepting this Award,
Participant expressly warrants that he or she has received an Option under the Plan, and has received, read and understood a description of the Plan. Participant understands that the Plan is discretionary in nature and may be amended, suspended
or terminated by the Company at any time. 
 24. Governing Law. This Option Agreement will be governed by the laws of
California, without giving effect to the conflict of law principles thereof. For purposes of litigating any dispute that arises under this Option or this Option Agreement, the parties hereby submit to and consent to the jurisdiction of the
State of California, and agree that such litigation will be conducted in the courts of Santa Clara County, California, or the federal courts for the United States for the Northern District of California, and no other courts, where this Option is
made and/or to be performed. 
 25. Country Addendum. Notwithstanding any provisions in this Option Agreement, this Option shall be
subject to any special terms and conditions set forth in the appendix (if any) to this Option Agreement for Participant’s country (the “Country Addendum”). Moreover, if Participant relocates to one of the countries included in the
Country Addendum (if any), the special terms and conditions for such country will apply to Participant, to the extent the Company determines that the application of such terms and conditions is necessary or advisable for legal or administrative
reasons. The Country Addendum constitutes part of this Option Agreement. 
 26. Restrictions on Sale of Securities. The Shares issued
upon exercise of the Option under this Option Agreement will be registered under the U.S. federal securities laws and will be freely tradable upon receipt. However, Participant’s subsequent sale of the Shares will be subject to any market
blackout-period that may be imposed by the Company and must comply with the Company’s insider trading policies, and any other applicable securities laws. 

  
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 Schedule 1 

Accelerated Vesting: 
 Notwithstanding the
previous sentence, in the event that Participant experiences an “Involuntary Termination” (as defined in the Plan) within the twelve (12) month period following a “Change of Control Merger” (as defined in the Plan”),
Participant will fully vest in and have the right to exercise Participant’s then-outstanding Options, including Shares as to which otherwise would not have been vested and exercisable. Thereafter the Option will remain exercisable in accordance
with its terms. 

  
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 APPENDIX A 

ECHELON CORPORATION 

2016 INDUCEMENT EQUITY INCENTIVE PLAN 

STOCK OPTION AGREEMENT 

COUNTRY ADDENDUM 
 [APPROPRIATE
ADDENDA, IF ANY, TO BE INCLUDED AS NEEDED] 

  
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 EXHIBIT B 

ECHELON CORPORATION 

2016 INDUCEMENT EQUITY INCENTIVE PLAN 

EXERCISE NOTICE 
 Echelon Corporation 

2901 Patrick Henry Drive 
 Santa Clara, CA 95054 

Attention: Stock Administrator 
 1.
Exercise of Option. Effective as of today,             ,         , the undersigned (“Purchaser”) hereby elects to purchase
                 shares (the “Shares”) of the common stock of Echelon Corporation (the “Company”) under and pursuant to the 2016 Inducement Equity
Incentive Plan (the “Plan”) and the Stock Option Agreement dated              (the “Option Agreement”). The purchase price for the Shares will be $
        , as required by the Option Agreement. 
 2. Delivery of Payment. Purchaser
herewith delivers to the Company the full purchase price of the Shares and any required tax withholding to be paid in connection with the exercise of the Option. 

3. Representations of Purchaser. Purchaser acknowledges that Purchaser has received, read and understood the Plan and the Option
Agreement and agrees to abide by and be bound by their terms and conditions. 
 4. Rights as Stockholder. Until the issuance (as
evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company) of the Shares, no right to vote or receive dividends or any other rights as a stockholder will exist with respect to the Shares
subject to the Option, notwithstanding the exercise of the Option. The Shares so acquired will be issued to Purchaser as soon as practicable after exercise of the Option. No adjustment will be made for a dividend or other right for which
the record date is prior to the date of issuance, except as provided in Section 13 of the Plan. 
 5. Tax Consultation. Purchaser
understands that Purchaser may suffer adverse tax consequences as a result of Purchaser’s purchase or disposition of the Shares. Purchaser represents that Purchaser has consulted with any tax consultants Purchaser deems advisable in connection
with the purchase or disposition of the Shares and that Purchaser is not relying on the Company for any tax advice. 
 6. Entire
Agreement; Governing Law. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan and the Option Agreement constitute the entire agreement of the parties with respect to the subject matter
hereof and 

  
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supersede in their entirety all prior undertakings and agreements of the Company and Purchaser with respect to the subject matter hereof, and may not be modified adversely to the Purchaser’s
interest except by means of a writing signed by the Company and Purchaser. This agreement is governed by the internal substantive laws, but not the choice of law rules, of California. 

 

					
	Submitted by:	 		 	Accepted by:
			
	PURCHASER	 		 	ECHELON CORPORATION
			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Its
			
	Address:	 		 	Address:
			
	  
	 		 	2901 Patrick Henry Drive
			
	  
	 		 	Santa Clara, CA 95054
			
		 		 	  

		 		 	Date Received


  
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