Document:

<PAGE>
                                                                    EXHIBIT 10.3

                               FIFTH AMENDMENT TO
                                 LOAN AGREEMENT,
                             SECURED PROMISSORY NOTE
                                       AND
                               SECURITY AGREEMENT

         THIS FIFTH AMENDMENT TO LOAN AGREEMENT, SECURED PROMISSORY NOTE AND
SECURITY AGREEMENT ("this Fifth Amendment"), is made and effective as of
February __, 2004 (the "Effective Date), by WAYNE R. HELLMAN ("Hellman"), and
ADVANCED LIGHTING TECHNOLOGIES, INC. ("ADLT").

                                   BACKGROUND

         A.       Hellman and ADLT entered into a Loan Agreement dated as of
October 8, 1998 (the "Original Loan Agreement"), pursuant to which ADLT advanced
Hellman $9,000,000 (the "Original Advance").

         B.       Pursuant to the Original Loan Agreement, the Original Advance
was evidenced by a Secured Promissory Note dated October 8, 1998 (the "Original
Note") and secured pursuant to (i) a Security Agreement dated as of October 8,
1998 (the "Original Security Agreement"), (ii) the Real Estate Mortgages
recorded as follows: June 30, 1999 Geauga County Ohio No 1245 page 39, June 30,
1999 Portage County Ohio No. 441 Page 202 and No. 441 Page 214, and August 24,
1999 Lee County Florida Book 3160 Page 1096 (the "Mortgages"), (iii) the
Collateral Assignment of Contract dated as of October 8, 1998 (the
"Assignment"), and (iv) Allonge No. 2 to Promissory Note From 24 Karat Street,
Inc. with delivery of the referenced note the (the "Karat Note").

         C.       Effective November 22, 2000, the Loan, the Note and the
Security Agreement were amended pursuant to the First Amendment to Loan
Agreement, Secured Promissory Note and Security Agreement ("First Amendment") to
provide for additional loans, up to a maximum additional principal amount of
$1,900,000, for the purpose of reducing the Margin Loans held by Bear Stearns
and Raymond James, the then current Margin Lenders, in satisfaction of
then-existing margin calls.

         D.       Effective March 15, 2001, the Loan, the Note and the Security
Agreement were amended pursuant to the Second Amendment to Loan Agreement,
Secured Promissory Note and Security Agreement ("Second Amendment") to provide
for additional loans, for the purpose of reducing the Margin Loans held by Bear
Stearns and Raymond James, in satisfaction of then-existing margin calls.

         E.       On March 15, 2001 and thereafter, Advanced Lighting made
Additional Advances pursuant to the Second Amendment in the aggregate principal
amount of $1,889,350.

                                   Page 1 of 6

<PAGE>

         F.       Effective April 25, 2002, the Loan, the Note and the Security
Agreement were amended pursuant to the Third Amendment to Loan Agreement,
Secured Promissory Note and Security Agreement ("Third Amendment") to prohibit
any pledge of shares of ADLT stock owned by Hellman without consent of ADLT as
long as the Loan was outstanding, to amend the interest rate payable on the Loan
and to provide adequate time for Hellman to pay the principal of, and interest
on, the Loan.

         G.       The Loan, the Note and the Security Agreement were amended
pursuant to the Fourth Amendment to Loan Agreement, Secured Promissory Note and
Security Agreement dated as of January 5, 2004 ("Fourth Amendment") to reflect
the Settlement Agreement, as defined below. The Original Loan Agreement, the
Original Note and the Original Security Agreement, each as amended by the First
Amendment, the Second Amendment, the Third Amendment and the Fourth Amendment,
are referred to herein as the Loan Agreement, the Note and the Security
Agreement, respectively.

         H.       The Loan Agreement, the Note, the Security Agreement, the
Mortgages, the Assignment and the Karat Note are included in the "Loan
Documents" as defined in the Loan Agreement. For purposes of this Fifth
Amendment, the term "Loan Documents" also includes the First, Second, Third, and
Fourth Amendments, and the Settlement Agreement, as defined below. All initially
capitalized terms that are used but not defined herein have the meaning ascribed
to them in the Loan Documents.

         I.       Hellman has demonstrated that the total value of his personal
assets is inadequate to satisfy the outstanding principal and interest on the
Loan and the other obligations secured by interests in his assets with priority
over the security interests of ADLT. ADLT has, in accordance with generally
accepted accounting principles, recognized this situation by impairing, from
time to time, the value of the Loan on the balance sheet of ADLT. Hellman has
advised ADLT, and ADLT's bankruptcy counsel has confimed, that ADLT would not
recover an amount in excess of the value of Hellman's assets, less the amount
obligations secured by security interests senior to ADLT's interests (to the
extent of the value of the property securing such obligations), if Hellman were
to file a bankruptcy proceeding. In recognition of (i) the difficulty and cost
of instituting a collection proceeding against Hellman, (ii) the complexity of
such a proceeding, (iii) the fact that such proceeding would likely be followed
by a bankruptcy petition by Hellman, and (iv) that the costs entailed in any
such proceeding would reduce the amounts available to ADLT for satisfaction of
the Loan, the independent members of the board of directors of ADLT determined
it to be in the best interests of ADLT to enter into the Fourth Amendment to
resolve these issues concurrently with the emergence of ADLT from its bankruptcy
proceedings and the independent members of the board of directors of ADLT
established following emergence from its bankruptcy proceedings have detemined
it to be in the best interests of ADLT to enter into this Fifth Amendment to
correct the Designated Amount, as defined in the Settlement Amendment.

         J.       On February 5, 2003, ADLT and various of its affiliates
(collectively, the "Debtors") each filed a voluntary petition for relief under
chapter 11 of title 11 of the

                                   Page 2 of 6

<PAGE>

United States Code. The Debtors' bankruptcy cases are jointly administered in
the United States Bankruptcy Court for the Northern District of Illinois,
Eastern Division (the "Bankruptcy Court") under Case No. 03 B 05255.

         K.       Hellman, ADLT and Saratoga Lighting Holdings LLC ("Saratoga")
have entered into that certain Settlement Agreement dated as of January 5, 2003
(the " Original Settlement Agreement"), and that certain First Amendment to
Settlement Agreement of even date herewith (the "Settlement Amendment"; the
Original Settlement Agreement and the Settlement Amendment are hereinafter
referred to collectively as the "Settlement Agreement"), following approval of
separate orders by the Bankruptcy Court pursuant to separate motions by ADLT for
authority to enter into the Original Settlement Agreement and the Fourth
Amendment and to enter into the Settlement Amendment and this Fifth Amendment .

                                    AGREEMENT

         NOW THEREFORE, as an inducement to and in consideration of the
agreement by ADLT to eliminate the outstanding interest on and to reduce the
outstanding principal of the Loan and the other agreements made herein, and for
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, and subject to the express approval by the Bankruptcy Court
of this Fifth Amendment, Hellman and ADLT agree as follows:

         1.       The Loan Agreement is hereby amended to provide that the
principal amount of the Loan is reduced to the Designated Amount as set forth on
Exhibit 6 to this Fifth Amendment, which Exhibit 6 is amended by this Fifth
Amendment to reflect the Designated Amount in the Settlement Agreement, as
amended by the Settlement Amendment (the "Designated Amount"). The parties
expressly acknowledge that the effectiveness of this Fifth Amendment is subject
to approval by the Bankruptcy court and that it will not be valid or enforceable
againxt any party absent such approval.

         2.       Hellman acknowledges and agrees that (i) (a) the Security
Interest granted in the Security Agreement, (b) the liens granted in the
Mortgages, (c) the rights of ADLT under the Assignment and Karat Note and (d)
all other rights and instruments that now or hereafter secure the Loan and
Hellman's Obligations with respect thereto, secure the Additional Advances as
amounts advanced to Hellman under the Loan Documents, (ii) the aggregate
outstanding principal amount of the Loan and Additional Advances prior to the
effect of the Fourth Amendment was $12,789,350 and (iii) in addition to, and
without limiting the descriptions of Collateral contained in any of the Loan
Documents, the Collateral includes all choses in action in which Hellman is
directly or indirectly the plaintiff and the proceeds from all choses in action,
and Hellman shall immediately notify ADLT of any such choses in action and take
all necessary action to enable ADLT to perfect its interest in such choses in
action. Hellman expressly acknowledges, agrees and reaffirms the validity and
enforceability of all of the Loan Documents as modified by this Fifth Amendment
and the Settlement Agreement, and waives any and all defenses that he has
asserted or could assert to defeat ADLT's right to enforce the Loan Documents,
as so modified.

                                   Page 3 of 6

<PAGE>

         3.       Hellman represents and warrants to ADLT that on the date
hereof (i) he is not in breach of any covenant in any Loan Document, (ii) all
representations and warranties in the Loan Documents are true and correct except
as has been disclosed to ADLT in writing, (iii) that the assets included in the
calculation of the Designated Amount, a description of which has been provided
to the ADLT Board of Directors and their advisors, constitute all of his assets
available for the payment of the Loan on the Effective Date and (iv) that
Hellman has no reason to believe that the valuation of such assets used in the
calculation of the Designated Amount is not correct in all material respects and
confirms his representations in Paragraph 5 of the Original Settlement
Agreement.

         4.       Hellman acknowledges and agrees that he shall not directly or
indirectly, in one or a series of transactions, obtain loans directly or
indirectly secured by the Margin Shares, until the Loan and Additional Advances,
together with all accrued interest thereon, shall have been paid in full,
without the prior written consent of the ADLT Board of Directors or its
designee(s).

         5.       Hellman acknowledges and agrees that he will make immediate
payments of the outstanding principal and interest on the Loan in the amount of
(i) the after-tax proceeds of any bonuses payable by ADLT or any affiliate,
which after-tax proceeds will be subject to an express right of offset by ADLT,
(ii) the after-tax proceeds of any sales of any and all Collateral and any other
amounts received by Hellman in respect of such Collateral and (iii) the
after-tax proceeds of any Margin Shares.

         6.       Hellman acknowledges and agrees that he will use his best
efforts to sell such items of Collateral as may be designated by the Board of
Directors, or its designee(s), from time to time, provided that, unless Hellman
shall be in default of his prepayment obligations pursuant to paragraph 5 of
this Fifth Amendment or his obligations to sell Collateral pursuant to this
paragraph 6, the Board of Directors may not require the sale of the residence
located in Lee County, Florida. Nothing in this paragraph 6 shall prevent ADLT
from exercising any and all of its rights under its Mortgage on such Florida
property, in accordance with the terms of such mortgage, in the event of a
default by Hellman on any obligations under the Loan Documents or in case any
voluntary or involuntary case in bankruptcy filed by or against Hellman.

         7.       Hellman agrees that to the extent Hellman's interests in and
to (a) H&F V LLC, (b) the proceeds from his settlement with Prudential of
approximately $1,354,000 and (c) his rights under a loan owed to Hellman by
Louis Fisi have not occurred prior to the effective date of this Fifth
Amendment, Hellman will promptly take all steps reasonably necessary to effect
the transfers of such interests.

         8.       Hellman will take all actions and execute all instruments as
requested by ADLT , in order to perfect, and keep perfected, all liens in any of
the Collateral granted to ADLT, including in any after acquired Collateral and
to perfect rights with respect to the Additional Advances.

                                   Page 4 of 6

<PAGE>

         9.       This Fifth Amendment shall be governed by and construed in
accordance with the laws of Ohio without regard to conflict of laws principles
(except to the extent the Collateral is situated in a state other than Ohio and
in that case any laws of such state which are required to control mortgages
granted on such property shall apply).

         10.      This Fifth Amendment inures to the benefit of and is binding
upon Hellman, and his estate, heirs, executors, administrators and personal
representatives, successors and assigns and ADLT and its successors and assigns.
Hellman may not assign or delegate this Amendment, any Loan Document or any of
his rights or obligations thereunder.

         11.      This Fifth Amendment may be executed in any number of
counterparts, each of which shall be regarded as an original and all of which
shall constitute but one and the same instrument; it shall not be necessary in
proving this Agreement to produce or account for more than one such counterpart.
A faxed executed counterpart of this Amendment will be considered an original
for evidentiary purposes.

         12.      This Fifth Amendment only modifies the Loan Documents to the
extent provided for herein, and the Loan Documents otherwise remain in full
force and effect without interruption. This Fifth Amendment may not be amended,
changed, modified, altered or terminated and no performance may be waived except
in writing executed by both parties.

         13.      This Fifth Amendment and the Loan Documents, including,
without limitation, the Settlement Agreement, constitute the entire agreement
between the parties with respect to the Loan Documents and all prior and
contemporaneous agreements or discussions, written or oral, with respect thereto
have no force or effect whatsoever. If any amendment of the terms of the Loan
Documents contained in this Fifth Amendment shall be contrary to applicable law,
such amendment shall be of no force or effect and the Loan Documents shall
remain in full force and effect without any such amendment.

         IN WITNESS WHEREOF, Hellman and ADLT have caused this Fifth Amendment
to be duly executed and delivered as of the Effective Date.

                                    /s/  Wayne R. Hellman
                                    ----------------------------------
                                    WAYNE R. HELLMAN

                                    ADVANCED LIGHTING TECHNOLOGIES, INC.

                                    By: /s/ Wayne Vespoli
                                       --------------------------------

                                    Its : Executive Vice President and Treasurer

                                   Page 5 of 6

<PAGE>

                                    EXHIBIT 6

DESIGNATED AMOUNT

The Designated Amount as determined by the Independent Directors and set forth
in Settlement Agreement is $4,023,500.00.

                                   Page 6 of 6<PAGE>
                                                                    EXHIBIT 10.4

                      ADVANCED LIGHTING TECHNOLOGIES, INC.
                                32000 Aurora Road
                                Solon, Ohio 44139

                                                  As of December 30, 2003

WELLS FARGO FOOTHILL, INC., as Agent and Lender
One Boston Place, 18th Floor
Boston, Massachusetts 02108

                    Re: Amendment and Consents to Agreements

Ladies and Gentlemen:

         Wells Fargo Foothill, Inc., as Arranger and Administrative Agent
("Agent") the lenders ("Lenders") from time to time parties to the Loan
Agreement (as defined below), and Advanced Lighting Technologies, Inc., an Ohio
corporation ("Parent") and each of Parent's Subsidiaries identified as a
borrower on the signature pages hereof (such Subsidiaries, together with Parent,
are referred to hereafter each individually as a "Borrower", and individually
and collectively, jointly and severally, as "Borrowers") have entered into
certain financing arrangements pursuant to the Amended and Restated Loan and
Security Agreement dated as of the date hereof, among Agent, Lenders, Borrowers
and the other Loan Parties (as the same now exists or may hereafter be amended,
modified, supplemented, extended, renewed, restated or replaced, the "Loan
Agreement"), and all other Loan Documents at any time executed and/or delivered
in connection therewith or related thereto. All capitalized terms used herein
shall have the meaning assigned thereto in the Loan Agreement, unless otherwise
defined herein.

         Reference is made to that certain Amended and Restated Stock Pledge
Agreement, dated December 10, 2003 between Agent and Parent (as the same now
exists or may hereafter be amended, modified, supplemented, extended, renewed,
restated or replaced, the "Stock Pledge Agreement"). Reference is also made to
that certain Amended and Restated Collateral Assignment of Notes, dated December
10, 2003 between Agent and Parent (as the same now exists or may hereafter be
amended, modified, supplemented, extended, renewed, restated or replaced, the
"Collateral Assignment of Notes").

         Borrowers and the other Loan Parties have advised Agent that APL
Engineered Materials, Inc. ("APL") intends to acquire one hundred percent (100%)
of the outstanding shares of capital stock of H & F Five, Inc. ("HF5") by
forming AAPL Holdings Inc. ("AAPL Holdings"), a wholly owned subsidiary of APL
(the "Formation of AAPL Holdings") and merging AAPL Holdings with and into HF5
(the "Merger") pursuant to the Agreement and Plan of Merger, dated as of the
date hereof, by and among HF5, AAPL Holdings and APL (the "Merger Agreement").
In connection with the Merger and pursuant to the Merger Agreement, Borrowers
shall pay to the existing shareholders of HF5 an amount equal to Two Hundred
Forty One Thousand ($241,000) Dollars (the "Investment"). The consideration to
be given Wayne R. Hellman ("Hellman") and Louis

                                       1
<PAGE>

S. Fisi ("Fisi") for their respective shares shall be (i) with respect to
Hellman, in the form of a credit by Parent in an amount equal to One Hundred
Twenty Thousand Five Hundred ($120,500) Dollars to the outstanding indebtedness
which remains owing by Hellman to Parent under that certain Secured Promissory
Note, dated October 8, 1998, by Hellman in favor of Parent in the original
principal amount of Nine Million ($9,000,000.00) Dollars, as amended to date
(the "Hellman Debt"), and (ii) with respect to Fisi, in the form of a credit by
Parent, as the assignee of Hellman's rights with respect to the Fisi Debt (as
defined and further described below), in an amount equal to Thirty Six Thousand
One Hundred Fifty ($36,150) Dollars to the outstanding indebtedness which
remains owing by Fisi (the "Fisi Debt") with respect to Hellman's December 24,
1998 payment on Fisi's behalf, with proceeds from a further borrowing by Hellman
under his then margin account with Prudential Securities Incorporated
("Prudential"), of the full Two Million Four Hundred Eighty Two Thousand
($2,482,000) Dollar margin loan then owed by Fisi to Prudential, Hellman's
rights to which Fisi Debt are being assigned by Hellman to Parent in
consideration of Parent's making of a further Fifteen Thousand ($15,000) Dollar
credit against the Hellman Debt (such credits against the Hellman Debt and the
Fisi Debt are collectively referred to as the "Debt Forgiveness").

         Borrowers and the other Loan Parties have requested that the Agent
consent to the Formation of AAPL Holdings, the Merger, the Investment and the
Debt Forgiveness. Agent has agreed to consent to the Formation of AAPL Holdings,
the Merger, the Investment and the Debt Forgiveness subject to the terms and
provisions hereof.

         In consideration of the foregoing, and other good and valuable
consideration, Agent, Lenders, Borrowers and the other Loan Parties hereby agree
as follows:

         1.       Consent. Notwithstanding anything to the contrary contained in
the Loan Agreement, including Section 5.8(c) (Subsidiaries), Section 7.3
(Restrictions on Fundamental Changes) and Section 7.13 (Investments), or the
Collateral Assignment of Notes, including Sections 3(c) and 3(e) thereof, Agent
hereby consents to the Formation of AAPL Holdings, the Merger, the Investment
and the Debt Forgiveness.

         2.       Amendment. As of the effective date of this letter agreement,
Exhibit A to the Stock Pledge Agreement is hereby amended by adding the
following below the heading "APL Engineered Materials, Inc.":

            "H & F Five, Inc.     Ohio         10          100"

         3.       Effect of this Agreement. Except as specifically set forth
herein, no other changes or modifications to the Loan Agreement, the Stock
Pledge Agreement or the Collateral Assignment of Notes are intended or implied,
and, in all other respects, the Loan Agreement, the Stock Pledge Agreement and
the Collateral Assignment of Notes shall continue to remain in full force and
effect in accordance with its terms as of the date hereof. Except as
specifically set forth herein, nothing contained herein shall evidence a waiver
or amendment by the Agent or Lenders of any other provision of the Loan
Agreement, the Stock Pledge Agreement or Collateral Assignment of Notes nor
shall

                                       2
<PAGE>

anything contained herein be construed as a consent by the Agent or Lenders to
any transaction other than those specifically consented to herein.

         4.       Representations, Warranties and Covenants. In addition to the
continuing representations, warranties and covenants heretofore or hereafter
made by Borrowers to Agent or Lenders pursuant to the Loan Agreement and the
other Loan Documents, Borrowers hereby represent, warrant and covenant with and
to Agent and Lenders as follows (which representations, warranties and covenants
are continuing and shall survive the execution and delivery hereof and shall be
incorporated into and made a part of the Loan Documents):

                  (a)      No Event of Default or act, condition or event, which
with notice or passage of time or both, would constitute an Event of Default,
exists on the date of this letter agreement.

                  (b)      This letter agreement has been duly executed and
delivered by Borrowers and the other Loan Parties and is in full force and
effect as of the date hereof, and the agreements and obligations of Borrowers
and the other Loan Parties contained herein constitute their respective legal,
valid and binding obligations enforceable against each in accordance with the
terms hereof.

                  (c)      Borrowers hereby acknowledge, confirm and agree that
Borrowers shall deliver to Agent, within five (5) Business Days of the date
hereof, all original stock certificates of HF5 and original stock powers, in
form and substance satisfactory to Agent, duly executed and delivered by APL.

                  (d)      Borrowers hereby acknowledge, confirm and agree that
Borrowers shall deliver to Agent, within five (5) days of Borrowers receipt
thereof, (i) evidence of the filing of the corporate formation documents of AAPL
Holdings with the Secretary of State of Ohio, and (ii) evidence of the filing of
the Merger Agreement with the Secretary of State of Ohio.

                  (e)      The execution, delivery, and performance by each
Borrower or Loan Party of (i) the Merger Agreement or any other documents or
agreements executed in connection therewith or related thereto, and (ii) this
letter agreement, do not and will not require any approval of any Borrower's or
any Loan Party's interestholders or any approval or consent of any Person under
any material contractual obligation of any Borrower or any Loan Party, other,
than any such approval or consent which has previously been obtained by
Borrowers and Loan Parties prior to the date hereof.

                  (f)      The security interests in and liens of Agent and
Lenders upon all assets and properties of Borrowers and the other Loan Parties,
are and shall continue to be in full force and effect and hereby are ratified
and confirmed in all respects.

         5.       Conditions Precedent. This letter agreement shall not be
effective unless and until Agent shall have received:

                                       3
<PAGE>

                  (a)      an original hereof, in form and substance
satisfactory to Agent, duly executed and delivered by all Borrowers and other
Loan Parties; and

                  (b)      an original Collateral Assignment of Notes, dated as
of the date hereof between Agent and APL, duly executed and delivered by APL,
together with an original Acknowledgement of Assignment and Waiver of Defense as
to Assignee, dated as of the date hereof, by HF5 in favor of Agent, duly
executed and delivered by HF5, each in form and substance satisfactory to Agent.

         6.       Binding Effect. The terms and provisions of this agreement
shall be for the benefit of the parties hereto and their respective successors
and assigns; no other person, firm, entity or corporation shall have any right,
benefit or interest under this agreement.

         7.       Counterparts. This letter agreement may be signed in
counterparts, each of which shall be an original and all of which taken together
constitute one agreement. In making proof of this letter agreement, it shall not
be necessary to produce or account for more than one counterpart signed by the
party to be charged. Delivery of an executed counterpart of this letter
agreement by telefacsimile shall have the same force and effect as the delivery
of an original executed counterpart of this letter agreement. Any party
delivering an executed counterpart of this letter agreement by telefacsimile
shall also deliver an original executed counterpart, but the failure to do so
shall not affect the validity, enforceability or binding effect of this letter
agreement.

         8.       Further Assurances. The parties hereto shall execute and
deliver such additional documents and take such additional actions as may be
necessary or desirable to effectuate the provisions and purposes of this letter
agreement.

         9.       Governing Law. The validity, interpretation and enforcement of
this letter agreement and any dispute arising out of the relationship between
the parties hereto, whether in contract, tort, equity or otherwise, shall be
governed by the internal laws of the state of New York (without giving effect to
principles of conflicts of law).

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       4
<PAGE>

         10.      Entire Agreement. This letter agreement sets forth the entire
agreement and understanding of the parties with respect to the matters set forth
herein. This letter agreement cannot be changed, modified, amended or terminated
except in a writing executed by the party to be charged.

                                     Very truly yours,

                                     ADVANCED LIGHTING
                                     TECHNOLOGIES, INC., an Ohio corporation, as
                                     a Borrower and a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: Chief Executive Officer

                                     APL ENGINEERED MATERIALS, INC.,
                                     an Illinois corporation, as a Borrower and
                                     a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: Chairman of the Board

                                     VENTURE LIGHTING
                                     INTERNATIONAL, INC., an Ohio corporation,
                                     as a Borrower and a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: Vice President

                                     BALLASTRONIX (DELAWARE), INC.,
                                     a Delaware corporation, as a Borrower and
                                     a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: President

                       [SIGNATURES CONTINUED ON NEXT PAGE]

                                       5
<PAGE>

                    [SIGNATURES CONTINUED FROM PREVIOUS PAGE]

                                     MICROSUN TECHNOLOGIES INC.,
                                     an Ohio corporation, as a Borrower and
                                     a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: President

                                     LIGHTING RESOURCES
                                     INTERNATIONAL, INC., an Ohio corporation,
                                     as a Borrower and a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: President

                                     ADLT SERVICES, INC., an Ohio
                                     corporation, as a Borrower and a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: President

                                     DEPOSITION SCIENCES, INC.,
                                     an Ohio corporation, as a Borrower and
                                     a Loan Party

                                     By: /s/ Wayne R. Hellman
                                        ----------------------------------------

                                     Name:  Wayne R. Hellman
                                     Title: Vice President

                       [SIGNATURES CONTINUED ON NEXT PAGE]

                                       6
<PAGE>

                    [SIGNATURES CONTINUED FROM PREVIOUS PAGE]

                                     VENTURE LIGHTING POWER SYSTEMS, NORTH
                                     AMERICA  INC., a Nova Scotia corporation,
                                     as a Loan Party

                                     By:/s/ R.G. Douglas Oulton
                                        ----------------------------------------

                                     Name:  R.G. Douglas Oulton
                                     Title: V. P. Finance & Administration

                                     PARRY POWER SYSTEMS LIMITED,
                                     a corporation organized under the laws of
                                     the United Kingdom, as a Loan Party

                                     By:/s/ Eddie Young
                                        ----------------------------------------

                                     Name:  Eddie Young
                                     Title: Director

                                     VENTURE LIGHTING EUROPE LTD.,
                                     a corporation organized under the laws of
                                     the United Kingdom, as a Loan Party

                                     By:/s/ S. D. Weaver
                                        ----------------------------------------

                                     Name:  S. D. Weaver
                                     Title: Director

ACKNOWLEDGED AND AGREED:

WELLS FARGO FOOTHILL, INC.,
a California corporation, as Agent and as a Lender

By: /s/ John T. Leonard
   ------------------------------------

Name:  John T. Leonard
Title: A. V. P.

                                       7

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