Document:

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                                                                  Exhibit 10.1.6

                               TELXON CORPORATION
                        1995 EMPLOYEE STOCK PURCHASE PLAN
                     (AS AMENDED THROUGH SEPTEMBER 26, 1995)

         1. PURPOSE OF THE PLAN. The Plan is intended as an incentive to and to
encourage stock ownership by all Eligible Employees of the Company and
Participating Subsidiaries so that they may share in the fortunes of the Company
by acquiring or increasing their proprietary interest in the Company. The Plan
is designed to encourage Eligible Employees to remain in the employ of the
Company. It is intended that options granted pursuant to this Plan shall
constitute options issued pursuant to an "employee stock purchase plan" within
the meaning of Section 423 of the Code.

         2. DEFINITIONS. In addition to such other capitalized terms as are
defined elsewhere in this Plan, the following terms shall when used in this Plan
have the respective meanings set forth below:

                  (a) "Business Day" means a day on which there is trading in
         the Common Stock on the Principal Market.

                  (b) "Base Compensation" means an employee's annual base
         salary, or if not salaried, annualized amount of hourly pay (including
         any shift or other compensatory premium which employee will regularly
         receive) based on the employee's regular weekly or biweekly hours, for
         services rendered to the Company and Participating Subsidiaries,
         including paid vacation and holidays and before adjustment for salary
         reduction contributions to the Company's 401(k) plan, health care or
         dependent care spending accounts and similar pretax plans but excluding
         bonuses and commissions.

                  (c) "Closing Price" means the closing price for one share of
         Common Stock on the Principal Market.

                  (d) "Code" means the Internal Revenue Code of 1986, as amended
         from time to time.

                  (e) "Committee" means the Stock Option and Restricted Stock
         Committee of the Board of Directors.

                  (f) "Common Stock" means the Common Stock, par value $.01 per
         share, of the Company.

                  (g) "Company" means Telxon Corporation, a Delaware
         corporation.

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                  (h) "Covered Compensation" means an employee's Base
                  Compensation plus bonuses, commissions, overtime and other
                  premium payments, sick pay, and shortterm disability payments
                  but excluding severance pay and taxable fringe benefits (such
                  as club dues, excess life insurance and personal automobile
                  use); provided, however, that no more than $150,000 in
                  cumulative aggregate amount of all of the foregoing forms of
                  included compensation during any single Payment Period or two
                  Payment Periods together comprising a single calendar year may
                  be counted as Covered Compensation for purposes of any payroll
                  deductions, stock purchases or other computations under this
                  Plan with respect to such Payment Period(s).

                  (i) "Eligible Employees" shall have the meaning set forth in
                  Section 3.

                  (j) "Option Price" means, in respect of each Payment Period,
                  the dollar amount (carried out to one onethousandth of a cent
                  ($0.00001)) equal to 85% of the lesser of (i) the Closing
                  Price of the Common Stock on the first Business Day of the
                  Payment Period and (ii) the Closing Price of the Common Stock
                  on the last Business Day of the Payment Period.

                  (k) "Participating Subsidiaries" means any majority-owned
                  subsidiary of the Company which is designated by the Committee
                  to participate in the Plan. The Committee shall have the power
                  to make such designation before or after the Plan is approved
                  by the Company's stockholders.

                  (l) "Payment Period" means the six month periods during which
                  payroll deductions will be accumulated under the Plan.

                  (m) "Plan" means this Telxon Corporation 1995 Employee Stock
                  Purchase Plan.

                  (n) "Principal Market" means The Nasdaq Stock Market's
                  National Market or stock exchange which is then the principal
                  trading market for the Common Stock (if the Common Stock is
                  traded on more than one market, that market which the
                  Committee determines to be the principal trading market).

                  (o) "Securities Law Requirements" means the Securities Act of
                  1933, the Securities Exchange Act of 1934 and the rules and
                  regulations promulgated by the Securities and Exchange
                  Commission thereunder, including but not limited to Rule
                  16b-3, as adopted and amended from time to time and as
                  interpreted by formal or informal opinions of and releases
                  published or other interpretative advice provided by the Staff
                  of the Securities and Exchange Commission, and the
                  requirements of any stock exchange, automated interdealer
                  quotation system or other recognized securities market on
                  which the Common Stock is listed or traded on in which the
                  Common Stock is included, as adopted and amended from time to
                  time and as interpreted by formal or informal opinions of, and
                  other interpretative advice provided by, the representatives
                  of such stock exchange, quotation system or other securities
                  market.

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         3. ELIGIBLE EMPLOYEES. Each full-time employee of the Company or any of
its Participating Subsidiaries, and each part-time employee thereof regularly
working at least 20 hours per week or 40 hours every two weeks, who has
completed 12 months of continuous employment with the Company and/or one or more
of its Participating Subsidiaries and whose Base Compensation does not exceed
$150,000 shall be eligible to receive options under this Plan to purchase Common
Stock (except employees in countries whose laws make participation impractical).
Persons who have been so employed for 12 months or more on the first day of a
Payment Period shall receive their options as of such day. The determination of
an employee's Plan eligibility with respect to the Base Compensation limitation
will be made only as of the beginning of each Payment Period, based on the rate
of Base Compensation he or she is then receiving, without regard to any changes
in his or her Base Compensation that may subsequently be made during that
Payment Period (including any changes given retroactive effect to a date prior
to the commencement of the Payment Period). Except as otherwise provided in
Section 14, all other eligibility requirements must be satisfied at all times
throughout the Payment Period until and including the third Friday of the last
month of such Payment Period or, in the case of the requirement that a
participant be employed by the Company or a Participating Subsidiary, up until
and including the last Business Day of such Payment Period (provided that, after
the third Friday of the last month of the Payment Period, satisfaction of said
employment conditions shall be determined without regard to the full-time and
part-time minimum hour requirements of the first sentence of this Section 3,
which full-time and part-time minimum shall apply for that Payment Period only
through said third Friday). All participating employees satisfying the
eligibility requirements of the Plan as of said third Friday or last Business
Day of the Payment Period as provided in the preceding sentence shall be
entitled to purchase shares on the last Business Day of such Payment Period as
provided in this Plan. Any employee eligible to and duly participating in the
Plan as of the beginning of a Payment Period but who at any time during that
Payment Period loses his or her status as an Eligible Employee will be deemed to
have lost such status, and to have withdrawn from participation in the Plan as
described in Section 10, effective as of the beginning of the regular payroll
period during which he or she ceases to satisfy any such requirement; provided,
however, that if such ineligibility is the result of the termination of his or
her employment, the provisions of Section 15 shall, subject to the provisions of
Section 14, control over the foregoing provisions of this sentence.

         In no event may an employee be granted an option if such employee,
immediately after the option is granted, owns stock representing 5% or more of
the total combined voting power or value of all classes of stock of the Company.
For purposes of determining stock ownership under this paragraph, the rules of
Section 425(d) of the Code shall apply, and stock which the employee may
purchase under outstanding options shall be treated as stock owned by the
employee.

         4. STOCK SUBJECT TO THE PLAN. The total number of shares of Common
Stock that may be optioned under the Plan is 500,000 shares, which may consist,
in whole or in part, of unissued shares or treasury shares.

         5. PAYMENT PERIODS AND GRANT OF OPTIONS. The six-month periods, January
1 to June 30 and July 1 to December 31, are the Payment Periods during which
payroll deductions will be accumulated under the Plan.

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         Two times each year, on the first Business Day of each Payment Period,
each Eligible Employee who is then a participant in the Plan will automatically
be granted by the Company an option to purchase, on the last Business Day of
such Payment Period, at the applicable Option Price, such number of whole shares
of the Common Stock reserved under this Plan as such employee is entitled to
purchase under this Plan with the payroll deductions authorized and credited to
his or her account during each Payment Period in accordance with the terms
hereof, up to that number of shares which does not exceed 15% of the employee's
Covered Compensation during the Payment Period divided by the Option Price,
provided that such employee remains eligible to participate in the Plan as
provided herein. The participant shall be entitled to exercise such options as
granted only to the extent of his or her unused payroll deductions accumulated
as of the third Friday of the last month of a Payment Period. Deductions after
the third Friday of the last month of a Payment Period shall be included in the
subsequent Payment Period.

         No employee shall be granted an option which permits his or her rights
to purchase Common Stock under the Plan and any similar plans of the Company or
any parent or subsidiary corporations to accrue at a rate which exceeds $25,000
of fair market value of such stock (determined at the time such option is
granted) for each calendar year in which such option is outstanding at any time.
The purpose of the limitation in the preceding sentence is to comply with
Section 423(b)(8) of the Code.

         6. EXERCISE OF OPTIONS. Each Eligible Employee who continues to qualify
as such as of the last Business Day of a Payment Period, or would have been a
continuing participant in the Plan as of such date had he or she not withdrawn,
or been deemed to have withdrawn, from participation pursuant to Section 10,
shall be deemed by his or her payroll deduction contributions to the Plan during
such Payment Period to have irrevocably stated his or her intention to exercise
his or her option on the last Business Day of such Payment Period and shall be
deemed to have purchased from the Company such number of whole shares of the
Common Stock reserved for the purposes of the Plan as his or her unused payroll
deductions accumulated as of the third Friday of the last month of such Payment
Period will pay for at the Option Price. If a participant is not an employee of
the Company or any Participating Subsidiary on the last Business Day of a
Payment Period, he or she shall not be entitled to exercise his or her option.

         7. AUTHORIZATION FOR ENTERING PLAN. An employee may enter the Plan by
filling out, signing and delivering to the Company's Human Resources Department
a written "Authorization", in form and manner satisfactory to the Company:

                  (a) stating the whole percentage of Covered Compensation to be
         deducted regularly from his or her pay; and

                  (b) authorizing the purchase of stock for him or her in each
         Payment Period in accordance with the terms of the Plan.

         Such Authorization must be received by the Company's Human Resources
Department no later than the third Friday of the last month of a Payment Period
in order to be effective for the following Payment Period.

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         The Company will accumulate as a credit for the employee's account the
authorized deductions made from his or her pay. No interest will be paid on such
accumulated amounts.

         8. AMOUNT OF PAYROLL DEDUCTIONS. An employee may authorize payroll
deductions in a whole percentage amount not less than 1% but not more than 15%
of his or her Covered Compensation received during the Payment Period. Covered
Compensation is considered received on the date a payroll check for, or direct
deposit of, the net amount thereof due employee is issued or made by the Company
(provided, however, that any commission or other advances are not considered
Covered Compensation received until the date such advanced amount has been
actually earned and would have regularly been paid had such amount not been
advanced), and deductions therefrom authorized for purchases of Common Stock
under this Plan are considered made at the time of the issuance or making of the
related check or deposit and not as of the date as of which the associated
Covered Compensation was earned or accrued.

         9. CHANGE IN PAYROLL DEDUCTIONS. An employee may increase or decrease
(including to zero) his or her rate of payroll deduction effective only as of
the beginning of a Payment Period and, except as otherwise provided in Section
10, not as of any other time. A new written Authorization will be required to
effect any such change and must be received by the Company's Human Resources
Department no later than the third Friday of the last month of a Payment Period
in order to be effective for the following Payment Period.

         10. WITHDRAWAL FROM PARTICIPATION. An employee may withdraw from
participation in the Plan, in whole but not in part, at any time by delivering
to the Company's Human Resources Department a written "Withdrawal", in form and
manner satisfactory to the Company, indicating such employee's intent to
withdraw. Deductions will be stopped as soon as practicable, and deductions
accumulated during such Payment Period prior to the discontinuation of
deductions will be applied to the purchase of stock as of the end of the Payment
Period. Once made, a Withdrawal is irrevocable for the balance of that Payment
Period, and no further contributions can be made during that Payment Period.

         An employee who withdraws or is deemed to have withdrawn from the Plan
as provided in this Section 10 will be treated (other than with respect to the
purchase of stock with his or her accumulated prewithdrawal deductions) as an
employee who has never entered the Plan. To resume participation in the Plan in
any future Payment Period (which resumed participation will be effective only as
of the beginning of such Payment Period), he or she must file a new
Authorization by the third Friday of the last month of the preceding Payment
Period.

         11. ESTABLISHMENT OF BROKERAGE ACCOUNT. By enrolling in the Plan, each
participating employee will be deemed to have authorized the establishment of a
brokerage account in his or her name at such securities brokerage firm as may be
designated from time to time by the Committee and to have consented to the
sharing by such brokerage firm with the Company of information regarding the
disposition of shares from said brokerage account.

         12. ISSUANCE OF STOCK. Stock purchased under the Plan will be issued,
or in the event the Committee establishes brokerage accounts pursuant to Section
11, held in an account, in

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the name of the employee, or if his or her Authorization so designates, in the
name of the employee and another person of legal age as joint tenants with
rights of survivorship, unless prohibited by state or local law. Stock will be
issued to or for the account of a participating employee or his or her designee
as of the end of each Payment Period in an amount equal to the number of shares
calculated by dividing his or her unused payroll deductions accumulated as of
the third Friday of the last month of such Payment Period by the Option Price,
rounded down to the nearest whole share. No fractional shares will be issued or
accrued, but the excess of an employee's accumulated payroll deductions over the
aggregate Option Price for the whole number of shares that can be purchased with
such accumulated deductions with respect to such Payment Period will be carried
forward for the employee's account under the Plan until applied to the purchase
of shares in future Payment Periods or refunded pursuant to the provisions of
the Plan. The Committee may establish a procedure for the refund of such
carried-forward balance to requesting employees who do not continue
participation in the Plan during the Payment Period (or number of Payment
Periods specified by the Committee) subsequent to the Payment Period with
respect to which such excess arises.

         13. NO TRANSFER OR ASSIGNMENT OF EMPLOYEE'S RIGHTS. An employee's
rights under the Plan are his or hers alone and may not be transferred,
assigned, or be availed of by any other person. Any option granted to an
employee may be exercised only by him or her.

         14. SUSPENSION OF PARTICIPATION. An employee's leave of absence
(absence from active employment not involving authorized vacation, death,
retirement, resignation, discharge, reduction-in-force or layoff, such as due to
disability, illness, compensable or non-compensable injury, personal emergency
or other approved personal leave) shall not have any effect on his or her
eligibility to participate in the Plan, and if such employee was participating
in the Plan at the time such leave commenced, his or her deductions shall be
automatically suspended for the duration of such leave (which suspension shall
not constitute a withdrawal from the Plan subject to Section 10) and, upon such
employee's resumption of an eligible level of active employment, shall
automatically resume at the pre-suspension amount authorized by the employee
unless the employee has properly submitted a revised Authorization in the
interim; provided that if the employee receives Covered Compensation, or
payments in lieu thereof, from the Company during any such leave of absence
(such as, for example, short-term disability benefits), the deduction rate
authorized by the employee prior to such leave (or if the employee has properly
submitted a revised Authorization, at the level specified therein) shall be
applied to all such amounts so paid during such leave of absence.

         15. TERMINATION OF EMPLOYEE'S RIGHTS. Except as otherwise provided in
Section 14, an employee's rights under the Plan will terminate when he or she is
no longer employed by the Company or any Participating Subsidiary, whether
because of retirement, resignation, discharge, death, or for any other reason.
All accumulated payroll deductions not used to purchase stock as of the date of
such cessation of employment will be refunded to the former employee or, in the
event of an employee's death, to his or her estate as an adjustment to such
former employee's final paycheck.

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         16. TERMINATION OF AND AMENDMENTS TO THE PLAN. The Plan may be
terminated at any time by the Committee. It will terminate in any case when all
or substantially all of the shares of stock reserved for the purposes of the
Plan have been purchased. If at any time shares of stock reserved for the
purpose of the Plan remain available for purchase but not in sufficient number
to satisfy all then unfilled purchase requirements, the available shares shall
be apportioned among participants in proportion to their options, and the Plan
shall terminate. Upon such termination or any other termination of the Plan, all
payroll deductions not used to purchase stock will be refunded.

         The Committee also has authority to amend the Plan from time to time in
any respect; provided, however, that no amendment shall be effective without
prior approval of the stockholders of the Company, which would (a) except as
provided in Section 23, increase the number of shares of Common Stock to be
offered above, or (b) change the class of employees eligible to receive options
under the Plan.

         17. LIMITATIONS ON SALE OF STOCK PURCHASED UNDER THE PLAN. The Plan is
intended to provide Common Stock for investment and not for resale. The Company
does not, however, intend to restrict or influence any employee in the conduct
of his or her own affairs. An employee may, therefore, sell or otherwise dispose
of stock purchased under the Plan at any time he or she chooses; provided,
however, so that the Company is able to properly account for the consequences
that a disposition of shares purchased under the Plan has under the United
States income tax laws, each employee agrees by his or her participation in the
Plan to (a) notify the Company in writing of any withdrawal of shares from the
brokerage account established pursuant to Section 11 and any related sale or
other disposition of the withdrawn shares within ten days thereof, (b) provide
such further information, and otherwise cooperate with the Company in taking
such further steps (which may include the legending of the withdrawn shares), as
the Company may reasonably request to enable it to properly account for such tax
consequences of the transaction described in the notification and any subsequent
sale or other disposition of the withdrawn stock, and (c) if the withdrawal does
not involve a sale or other disposition which is reported on that initial
notification, provide the Company with written notice of any subsequent sale or
other disposition of that withdrawn stock within ten days after the making
thereof. An employee shall be obligated to provide such notices and cooperation
under the preceding sentence where such withdrawal, sale or other disposition
occurs within (i) two years after the date of grant of the applicable option, or
(ii) one year after the transfer of such stock to such employee,. The Company
may waive such written notification requirement to the extent that it is able to
obtain the necessary information from the brokerage firm designated and serving
pursuant to Section 11. The employee assumes the risk of all market fluctuations
in the price of all stock acquired hereunder.

         18. PLAN EXPENSES. The Company will bear all costs of administering and
carrying out the Plan.

         19. ADMINISTRATION OF THE PLAN. The Plan shall be administered by the
Committee. Acts by a majority of the Committee, or acts reduced to or approved
in writing by a majority of the members of the Committee, shall be the valid
acts of the Committee.

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         The interpretation and construction of the Plan are entrusted to the
discretion of the Committee, and its interpretation and construction of any
provisions of the Plan or of any option granted under it shall be final. The
Committee may from time to time adopt such rules and regulations for carrying
out the Plan as it may deem best. No member of the Board of Directors or the
Committee shall be liable for any action or determination made in good faith
with respect to the Plan or any option granted under it.

         20. NO EMPLOYMENT RIGHTS. The existence of this Plan shall not create
in any employee any right to be granted an option or to purchase Common Stock
hereunder. Neither the existence of this Plan nor the granting of any option
hereunder to any employee shall confer upon such employee any right to the
continuation of his or her employment with the Company or any subsidiary thereof
or shall in any way interfere with or otherwise limit the right which such
employee, the Company or any subsidiary may otherwise have to terminate such
employment at any time with or without cause. Any benefits realized by an
employee under this Plan or any option granted hereunder shall not be deemed a
part of such employee's regular, recurring compensation for purposes of the
termination, indemnity or severance pay laws of any jurisdiction and shall not
be included in, or have any effect on, the determination of benefits under any
such law or, except as otherwise expressly provided thereby or determined in the
discretion of the person or group authorized to administer the same, any other
employee benefit plan or similar arrangement in which an employee may otherwise
be eligible to participate.

         21. OPTIONEES NOT STOCKHOLDERS. Neither the granting of an option to an
employee nor the deductions from his or her pay shall constitute such employee
the owner of the shares covered by an option until such shares have been
purchased by him or her.

         22. APPLICATION OF FUNDS. The proceeds received by the Company from the
sale of Common Stock pursuant to options granted under the Plan may be used by
the Company for any corporate purpose. The Company shall have no obligation to
segregate employees' payroll deductions from any other funds of the Company or
to hold funds representing the same pending the application thereof in
accordance with this Plan.

         23. CHANGES IN CAPITAL. If the Common Stock subject to the Plan shall
at any time be changed or exchanged by declaration of a stock dividend, stock
split combination of shares, recapitalization, merger, consolidation or other
corporate reorganization in which the Company is the surviving corporation, the
number and kind of shares subject to this Plan and the Option Price shall be
appropriately and equitably adjusted. In the event of a dissolution or
liquidation of the Company or a merger, consolidation, sale of all or
substantially all of its assets, or other corporate reorganization in which the
Company is not the surviving corporation, or any merger in which the Company is
the surviving corporation but the holders of its Common Stock receive securities
of another corporation, the then current Payment Period shall be deemed to end
as of the Business Day prior to the effective date of such transaction such that
all then accumulated payroll deductions shall be applied to the purchase of
Common Stock in accordance with the provisions hereof. Other than giving effect
to the provisions of this Section 23, the existence of the Plan or options
hereunder shall not in any way prevent any transaction described herein, and no
holder of an option shall have the right to prevent such transaction.

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         24. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued with
respect to an option unless the exercise of such option and the issuance and
delivery of shares pursuant thereto shall comply with all applicable Securities
Law Requirements and all other applicable provisions of law, including, without
limitation, any applicable state "blue sky" laws and foreign (national and
local) securities laws and the rules and regulations promulgated under any of
such laws, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

         As a condition to the exercise of an option or the issuance of shares
upon exercise of an option, the Company may require the person exercising such
option to make such representations and warranties to the Company as may be
required, in the opinion of counsel for the Company, by any of the
aforementioned Securities Law Requirements and other laws, which may include,
without limitation, representations and warranties that the shares are being
purchased only for investment and without any present intention to sell or
distribute such shares.

         The Company shall not have any liability to any Plan participant in
respect of any delay in the sale or issuance of shares hereunder until the
Company is able to obtain governmental authority (domestic or foreign) or the
authority of a self-regulatory organization having jurisdiction over it, which
authority is deemed by the Company's counsel to be necessary to the lawful sale
and issuance of such shares, or any failure to sell or issue such Shares as to
which such requisite authority the Company is unable to obtain.

         25. GOVERNING LAW. To the extent the laws of the United States (such as
the Code) or the Delaware General Corporation Law do not otherwise control, this
Plan and all determinations made and actions taken pursuant hereto shall be
governed by the laws of the State of Ohio, without regard to principles of
conflicts of laws, and construed accordingly.

         26. CAPTIONS. The captions contained in this Plan are for convenience
of reference only and shall not affect the meaning of any term or provision
hereof.

         27. APPROVAL OF STOCKHOLDERS; IMPLEMENTATION OF PLAN. This Plan was
adopted by the Company's Board of Directors subject to and to become effective
only upon, approval hereof by the Company's stockholders, which approval was
obtained at the Annual Meeting of such stockholders held August 31, 1995. The
Plan shall begin operation using an initial three month transitional Payment
Period ending December 31, 1995, for the purposes of which initial Payment
Period the Closing Price on September 1, 1995 shall be used as the initial
Closing Price called for by Section 2(j)(i) for purposes of determining the
Option Price, October 1, 1995 shall be used as the date for measuring employees'
length of continuous service and Base Compensation for purposes of determining
their eligibility to participate in the Plan, and October 20, 1995 shall be used
as the initial date as of which payroll deductions shall begin to accumulate
under the Plan. Except as specifically provided otherwise in this Section 27,
the Plan shall, during and with respect to said initial Payment Period, be
governed by and administered in accordance with the provisions of the foregoing
Sections 1 through 26 of this Plan. With respect to all Payment Periods
beginning on or after January 1, 1996, the Payment Periods, related
determinations of the Option Price and employee eligibility and accumulation of
payroll

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deductions, and all other matters arising under the Plan shall be governed by
and administered in accordance with the provisions of this Plan without regard
to the transitional rules set forth for the initial implementation of the Plan
as set forth in this Section 27.

                                       10<PAGE>   1
                                                                    EXHIBIT 10.1

                            SIXTH AMENDMENT AGREEMENT

         This Sixth Amendment Agreement is effective as of the 1st day of July,
2000, by and among ADVANCED LIGHTING TECHNOLOGIES, INC., an Ohio corporation
("U.S. Borrower"), VENTURE LIGHTING POWER SYSTEMS, NORTH AMERICA INC. (f.k.a.
Ballastronix Incorporated), a corporation organized under the laws of the
Province of Nova Scotia, CANADIAN LIGHTING SYSTEMS HOLDING, INCORPORATED, a
corporation organized under the laws of the Province of Nova Scotia
(collectively, "Canadian Borrowers" and, individually, "Canadian Borrower"),
PARRY POWER SYSTEMS LIMITED (Company No. 2833448, f.k.a. Venture Lighting Europe
Ltd.), incorporated under the laws of England, VENTURE LIGHTING EUROPE LTD.
(Company No. 3341889, f.k.a. Parry Power Systems Limited), incorporated under
the laws of England (collectively, "UK Borrowers" and, individually, "UK
Borrower", and together with U.S. Borrower and Canadian Borrowers, collectively,
"Borrowers" and, individually, "Borrower"), the banking institutions listed on
Schedule 1 (as amended herein) to the Credit Agreement, as hereinafter defined
("Banks"), and PNC BANK, NATIONAL ASSOCIATION, as agent for the Banks ("Agent"):

         WHEREAS, Borrowers, Agent and the Banks are parties to a certain Credit
Agreement dated as of May 21, 1999, as amended, that provides, among other
things, for loans aggregating Sixty Million Dollars ($60,000,000), all upon
certain terms and conditions stated therein ("Credit Agreement");

         WHEREAS, Borrowers, Agent and the Banks desire to amend the Credit
Agreement to modify certain provisions thereof; and

         WHEREAS, each term used herein shall be defined in accordance with the
Credit Agreement.

         NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein contained and for other valuable considerations, Borrowers,
Agent and the Banks hereby agree as follows:

         1. The definition of "Capital Expenditures" contained in Article I of
the Credit Agreement is hereby amended to read in its entirety as follows:

                  "Capital Expenditures" shall mean, for any period, the amount
                  of Capital Expenditures as determined on a Consolidated basis
                  in accordance with GAAP; provided, however, the Capital
                  Expenditures of Deposition Sciences, Inc., an Ohio corporation
                  ("DSI") and APL Engineered Materials, Inc., an Illinois
                  corporation ("APL"), taken together with research and
                  development expenses of the telecommunications business of
                  DSI, in an amount not to exceed $23,843,000 shall be excluded
                  from this definition of Capital Expenditures so long as no
                  Event of Default exists or will occur as a result of the
                  making of such Capital Expenditures."

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         2. The definition of "Cash Flow" contained in Article I of the Credit
Agreement is hereby amended to add the following at the end thereof:

                  "plus (e) research and development expenses related to the
                  telecommunications business of DSI, together with Capital
                  Expenditures of DSI and APL, in an amount not to exceed
                  $23,843,000."

         3. Section 5.8 of the Credit Agreement is hereby amended to add a new
subsection (i), which reads in its entirety as follows:

                  "(i) indebtedness incurred by DSI in an aggregate amount not
                  to exceed $11,000,000 in connection with the acquisition of
                  property located in California."

         4. Subsection (i) of Section 5.9 of the Credit Agreement is hereby
amended to read in its entirety as follows:

                  "Liens securing Indebtedness permitted by Sections 5.8 (b),
                  (h) and (i) hereof; or"

         5. Subsection (vii) of Section 5.11 of the Credit Agreement is hereby
amended to read in its entirety as follows:

                  "(vii) any advance or loan to an officer or employee of a
                  Borrower or a Subsidiary made in the ordinary course of such
                  Company's business, so long as all such advances and loans
                  from all Companies aggregating not more than the maximum
                  principal sum of $3 million at any time outstanding (excluding
                  the loan to Wayne R. Hellman referred to in (viii) below);"

         6. [Intentionally omitted.]

         7. Section 5.12 of the Credit Agreement is hereby amended to add a new
subsection (e), which reads in its entirety as follows:

                  "(e) DSI may merge into a newly formed subsidiary of U.S.
                  Borrower solely for purposes of changing the state of
                  incorporation of DSI, provided such new subsidiary comply in
                  full with the provisions of Section 5.22."

                                       -2-

<PAGE>   3

         8. Section 5.19 of the Credit Agreement is hereby amended by adding the
following language to the existing proviso to Section 5.19:

                  "and DSI may amend its Articles of Incorporation to increase
                  the number of authorized shares of common stock of DSI to
                  100,000,000 shares and to authorize the issuance of up to
                  10,000,000 shares of preferred stock of DSI."

         9. Agent and the Banks hereby consent to the purchase of the net assets
of Ruud Lighting New Zealand Limited for consideration in the aggregate not to
exceed $700,000 (plus any interest incurred in connection with the Seller
financed portion of the purchase price).

         10. Concurrently with the execution of this Sixth Amendment Agreement,
Borrowers shall:

                  (a) cause each Guarantor of Payment to consent and agree to
                  and acknowledge the terms of this Sixth Amendment Agreement;

                  (b) deliver such other documents as may reasonably required by
                  Agent in connection with this Sixth Amendment Agreement; and

                  (c) pay all legal fees and expenses of Agent in connection
                  with this Sixth Amendment Agreement.

         11. Borrowers hereby represent and warrant to Agent and the Banks that
(a) each Borrower has the legal power and authority to execute and deliver this
Sixth Amendment Agreement; (b) the officers executing this Sixth Amendment
Agreement have been duly authorized to execute and deliver the same and bind
such Borrower with respect to the provisions hereof, (c) the execution and
delivery hereof by Borrowers and the performance and observance by Borrowers of
the provisions hereof do not violate or conflict with the organizational
agreements of any Borrower or any law applicable to any Borrower or result in a
breach of any provision of or constitute a default under any other agreement,
instrument or document binding upon or enforceable against any Borrower; (d) no
Unmatured Event of Default or Event of Default exists under the Credit
Agreement, nor will any occur immediately after the execution and delivery of
this Sixth Amendment Agreement or by the performance or observance of any
provision hereof; (e) neither Borrower nor any Guarantor of Payment is aware of
any claim or offset against, or defense or counterclaim to, any of Borrowers' or
any Guarantor of Payment's obligations or liabilities under the Credit Agreement
or any Related Writing; and (f) this Sixth Amendment Agreement constitutes a
valid and binding obligations of each Borrower in every respect, enforceable in
accordance with its terms.

         12. Each reference that is made in the Credit Agreement or any other
writing to the Credit Agreement shall hereafter be construed as a reference to
the Credit Agreement as amended hereby. Except as herein otherwise specifically
provided, all provisions of the Credit Agreement shall remain in full force and
effect and be unaffected hereby. This Sixth Amendment Agreement is a Related
Writing as defined in the Credit Agreement.

                                       -3-

<PAGE>   4

         13. Each Borrower and each Guarantor of Payment, by signing below,
hereby waives and releases Agent and each of the Banks and their respective
directors, officers, employees, attorneys, affiliates and subsidiaries from any
and all claims, offsets, defenses and counterclaims of which any Borrower and
any Guarantor of Payment is aware, such waiver and release being with full
knowledge and understanding of the circumstances and effect thereof and after
having consulted legal counsel with respect thereto.

         14. This Sixth Amendment Agreement may be executed in any number of
counterparts, by different parties hereto in separate counterparts and by
facsimile signature, each of which when so executed and delivered shall be
deemed to be an original and all of which taken together shall constitute but
one and the same agreement.

         15. The rights and obligations of all parties hereto shall be governed
by the laws of the State of Ohio, without regard to principles of conflicts of
laws.

                  [Remainder of Page Intentionally Left Blank]

                                       -4-

<PAGE>   5

    16. JURY TRIAL WAIVER. BORROWERS, AGENT AND EACH OF THE BANKS WAIVE ANY
RIGHT TO HAVE A JURY PARTICIPATE IN RESOLVING ANY DISPUTE, WHETHER SOUNDING IN
CONTRACT, TORT OR OTHERWISE, AMONG ANY BORROWER, AGENT AND THE BANKS, OR ANY
THEREOF, ARISING OUT OF, IN CONNECTION WITH, RELATED TO, OR INCIDENTAL TO THE
RELATIONSHIP ESTABLISHED AMONG THEM IN CONNECTION WITH THIS AGREEMENT OR ANY
NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT EXECUTED OR DELIVERED IN
CONNECTION HEREWITH OR THE TRANSACTIONS RELATED THERETO. THIS WAIVER SHALL NOT
IN ANY WAY AFFECT, WAIVE, LIMIT, AMEND OR MODIFY AGENT'S OR ANY BANK'S ABILITY
TO PURSUE REMEDIES PURSUANT TO ANY CONFESSION OF JUDGMENT OR COGNOVIT PROVISION
CONTAINED IN ANY NOTE OR OTHER INSTRUMENT, DOCUMENT OR AGREEMENT BETWEEN
BORROWERS, AGENT AND THE BANKS, OR ANY THEREOF.

         Agreed to and accepted this 10th day of November, 2000.

ADVANCED LIGHTING TECHNOLOGIES,             CANADIAN LIGHTING SYSTEMS
INC.                                        HOLDING, INCORPORATED

By: /s/ Steven C. Potts                      By:/s/ R. G. Douglas Oulton
   --------------------------                   -------------------------------
       Steven C. Potts,                      Title: VP Finance & Administration
       Chief Financial Officer                     -----------------------------

VENTURE LIGHTING POWER SYSTEMS,             VENTURE LIGHTING EUROPE
NORTH AMERICA INC. (f.k.a. Ballastronix     LTD.
Incorporated)

By: /s/ R. G. Douglas Oulton                 By: /s/ E. Young
   --------------------------                   --------------------------------
Title: VP Finance & Administration           Title: Director
      -----------------------------                 ----------------------------
PARRY POWER SYSTEMS LIMITED                 FLEET NATIONAL BANK,
                                            f.k.a. BankBoston, N.A., as a Bank

By: /s/ W. Ian Wilkinson                   By:  /s/ Jack A. Myers
   --------------------------                  ---------------------------------
Title: Director                             Title: Senior Vice President
       ----------------------                      -----------------------------
PNC BANK, NATIONAL ASSOCIATION,             SOVEREIGN BANK
  as Agent and as a Bank

                                            By:________________________________
By: /s/ Richard Muse, Jr.                   Title:_____________________________
   --------------------------
Title: Vice President
       ----------------------

NATIONAL CITY COMMERCIAL
FINANCE, INC.

By: Paul Weybrecht
   ---------------------------
Title: Vice President
      ------------------------

                                       -5-

<PAGE>   6

                            GUARANTOR ACKNOWLEDGMENT

         Each of the undersigned consents and agrees to and acknowledges the
terms of the foregoing Sixth Amendment Agreement. Each of the undersigned
further agrees that the obligations of each of the undersigned pursuant to the
Guaranty of Payment executed by each of the undersigned shall remain in full
force and effect and be unaffected hereby.

                                     ADLT Realty Corp. I, Inc.
                                     ADLT Services, Inc.
                                     Advanced Lighting, Inc.
                                     Advanced Lighting Systems, Inc.
                                     APL Engineered Materials, Inc.
                                     Ballastronix (Delaware), Inc.
                                     Bio Light, Inc.
                                     Bright Ideas Advertising and Design, Inc.
                                     Energy Efficient Products, Inc.
                                     HID Recycling, Inc.
                                     Lighting Resources International, Inc.
                                     Metal Halide Controls, Inc.
                                     Metal Halide Technologies, Inc.
                                     Microsun Technologies, Inc.
                                     Specialty Discharge Lighting, Inc.
                                     Venture Lighting International, Inc.

                                     By: /s/ Nicholas R. Sucic
                                     Name: Nicholas R. Sucic
                                     Title: Executive Vice President
                                     of each of the companies listed above

                                     Deposition Sciences, Inc.
                                     Kramer Lighting, Inc.
                                     Ruud Lighting, Inc.

                                     By: /s/ Steven C. Potts
                                     Name: Steven C. Potts
                                     Title: Chief Financial Officer
                                     signing for each of the companies listed
                                     above by Power of Attorney

                                       -6-

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