Document:

EXHIBIT 10.2
                                COMMERCIAL LEASE

         This lease is made between Trim Express, herein called Lessor, and Sun
Auto Leasing and Sales, herein called Lessee.

         Lessee hereby offers to lease from Lessor the premises situated in the
City of Fort Lauderdale, County of Broward, State of Florida, described as
office/warehouse building located at 2800 NW 62nd Street, upon the following
TERMS and CONDITIONS.

1. Term and Rent: Lessor demises the above premises for a term of 5 years,
commencing March 1, 2002 and terminating on February 28, 2006 or sooner as
provided herein at the monthly rental of $7500 payable in equal installments in
advance on the first day of each month for that month's rental, during the term
of this lease. All rental payments shall be made direct to the property owner -
Summerhaven Properties on behalf of Lessor, at the address specified above.

2. Use. Lessee shall use and occupy the premises for auto wholesale business.
The premises shall be used for no other purpose. Lessor represents that the
premises may lawfully be used for such purpose.

3. Care and Maintenance of Premises. Lessee acknowledges that the premises are
in good order and repair, unless otherwise indicated herein. Lessee shall, at
his own expense and at all times, maintain the premises in good and safe
condition, including plate glass, electrical wiring, plumbing and heating
installations and any other system or equipment upon the premises, and shall
surrender the same at termination hereof, in as good condition as received,
normal wear and tear excepted. Lessee shall be responsible for all repairs
required, excepting the roof, exterior walls, structural foundations, and: n/a

4. Alterations. Lessee shall not, without first obtaining the written consent of
Lessor, make any alterations, additions, or improvements, in, to or about the
premises.

5. Ordinances and Statutes. Lessee shall comply with all statutes, ordinances
and requirements of all municipal, state and federal authorities now in force,
or which may hereafter be in force, pertaining to the premises, occasioned by or
affecting the use thereof by Lessee.

6. Assignment and Subletting. Lessee shall not assign this lease or sublet any
portion of the premises without prior written consent of the Lessor, which shall
not be unreasonably withheld. Any such assignment or subletting without consent
shall be void and, at the option of the Lessor, may terminate this lease.

7. Utilities. All applications and connections for necessary utility services on
the demised premises shall be made in the name of Lessee only, and Lessee shall
be solely liable for utility charges as they become due, including those for
sewer, water, gas, electricity, and telephone services.

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8. Entry and Inspection. Lessee shall permit Lessor or Lessor's agents to enter
upon the premises at reasonable times and upon reasonable notice, for the
purpose of inspecting the same, and will permit Lessor at any time within sixty
(60) days prior to the expiration of this lease, to place upon the premises any
usual "To Let" or "For Lease" signs, and permit persons desiring to lease the
same to inspect the premises thereafter.

9. Possession. If Lessor is unable to deliver possession of the premises at the
commencement hereof, Lessor shall not be liable for any damage caused thereby,
nor shall this lease be void or voidable, but Lessee shall not be liable for any
rent until possession is delivered. Lessee may terminate this lease if
possession is not delivered within n/a days of the commencement of the term
hereof.

10. Indemnification of Lessor. Lessor shall not be liable for any damage or
injury to Lessee, or any other person, or to any property, occurring on the
demised premises or any part thereof, and Lessee agrees to hold Lessor harmless
from any claim for damages, no matter how caused.

11. Insurance. Lessee, at his expense, shall maintain plate glass and public
liability insurance including bodily injury and property damage insuring Lessee
and Lessor with minimum coverage as follows: Lessee shall provide Lessor with a
Certificate of Insurance showing Lessor as additional insured. The Certificate
shall provide for a ten-day written notice to Lessor in the event of
cancellation or material change of coverage. To the maximum extent permitted by
insurance policies, which may be owned by Lessor or Lessee, Lessee and Lessor,
for the benefit of each other, waive any and all rights of subrogation which
might otherwise exist.

12. Eminent Domain. If the premises or any part thereof or any estate therein,
or any other part of the building materially affecting Lessee's use of the
premise, shall be taken by eminent domain, this lease shall terminate on the
date when title vests pursuant to such taking. The rent, and any additional
rent, shall be apportioned as of the termination date, and any rent paid for any
period beyond that date shall be repaid to Lessee. Lessee shall not be entitled
to any part of the award for such taking or any payment in lieu thereof, but
Lessee may file a claim for any taking of fixtures and improvements owned by
Lessee, and for moving expenses.

13. Destruction of Premises. In the event of a partial destruction of the
premises during the term hereof, from any cause, Lessor shall forthwith repair
the same, provided that such repairs can be made within sixty (60) days under
existing governmental laws and regulations, but such partial destruction shall
not terminate this lease, except that Lessee shall be entitled to a
proportionate reduction of rent while such repairs are being made, based upon
the extent to which the making of such repairs shall interfere with the business
of Lessee on the premises. If such repairs cannot be made within said sixty (60)
days, Lessor, at his option, may make the same within a reasonable time, this
lease continuing in effect with the rent proportionately abated as aforesaid,
and in the event that Lessor shall not elect to make such repairs which cannot
be made within sixty (60) days, this lease may be terminated at the option of
either party. In the event that the building in which the demised premises may
be situated is destroyed to an extent of not less than one-third of the
replacement costs thereof, Lessor may elect to terminate this lease whether the
demised premises be injured or not. A total destruction of the building in which
the premises may be situated shall terminate this lease.

14. Lessor's Remedies on Default. If Lessee defaults in the payment of rent, or
any additional rent, or defaults in the performance f any of the other covenants

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or conditions hereof, Lessor may give Lessee notice of such default and if
Lessee does not cure any such default within n/a days, after the giving of such
notice (or if such other default is of such nature that it cannot be completely
cured within such period, if Lessee does not commence such curing within such
n/a days and thereafter proceed with reasonable diligence and in good faith to
cure such default), then Lessor may terminate this lease on not less than 90
days' notice to Lessee. On the date specified in such notice the term of this
lease shall terminate, and Lessee shall then quit and surrender the premises to
Lessor, but Lessee shall remain liable as hereinafter provided. If this lease
shall have been so terminated by Lessor, Lessor may at any time thereafter
resume possession of the premises by any lawful means and remove Lessee or other
occupants and their effects.

15. Security Deposit. Lessee shall deposit with Lessor on the signing of this
lease the sum of 0 Dollars ($0) as security deposit for the performance of
Lessee's obligations under this lease, including without limitation, the
surrender of possession of the premises to Lessor as herein provided. If Lessor
applies any part of the deposit to cure any default of Lessee, Lessee shall on
demand deposit with Lessor the amount so applied so that Lessor shall have the
full deposit on hand at all times during the term of this lease.

16. Tax Increase. In the event there is any increase during any year of the term
of this lease in the City, County or State real estate taxes over and above the
amount of such taxes assessed for the tax year during which the term of this
lease commences, whether because of increased rate or valuation, Lessee shall
pay to Lesser upon presentation of paid tax bills an amount equal to ___% of the
increase in taxes upon the land and building in which the leased premises are
situated. In the event that such taxes are assessed for a tax year extending
beyond the term of the lease, the obligation of Lessee shall be proportionate to
the portion of the lease term included in such year.

17. Common Area Expenses. In the event the demised premises are situated in a
shopping center or in a commercial building in which there are common areas,
Lessee agrees to pay his pro-rata share of maintenance, taxes, and insurance for
the common area.

18. Attorney's Fees. In case suit should be brought for recovery of the
premises, or for any sum due hereunder, or because of any act which may arise
out of the possession of the premises, by either party, the prevailing party
shall be entitled to all costs incurred in connection with such action,
including a reasonable attorney's fee.

19. Notices. Any notice which either party may, or is required to give, shall be
given by mailing the same, postage prepaid, to Lessee at the premises, or Lessor
at the address first written, or at such other places as may be designated by
the parties from time to time.

20. Heirs, Assigns, Successors. This lease is binding upon and inures to the
benefit of the heirs, assigns and successors in interest to the parties.

21. Option to Renew. Provided that Lessee is not in default in the performance
of this lease, Lessee shall have the option to renew the lease for an additional
term of sixty (60) months commencing at the expiration of the initial lease
term. All of the terms and conditions of the lease shall apply during the
renewal term except that the monthly rent shall be the sum of current + 10%. The
option shall be exercised by written notice given to Lessor not less than ninety
(90) days prior to the expiration of the initial lease term. If notice is not
given in the manner provided herein within the time specified, this option shall
expire.

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22. Subordination. This lease is and shall be subordinated to all existing and
future liens and encumbrances against the property.

23. Entire Agreement. The foregoing constitutes the entire agreement between the
parties and may be modified only by a writing signed by both parties.

         Signed this  3    day of           3                , 2001.
                     ----        ---------------------------     --

/s/ Gerald Scalzo                                  /s/ Gerald Scalzo
-----------------                                  --------------------------
Trim Express                                       Sun Auto Leasing and Sales

                                       4<PAGE>
Exhibit 4.2

                            CERTIFICATE OF AMENDMENT

                                       OF

                           CERTIFICATE OF DESIGNATION

                                       OF

                      SERIES A CONVERTIBLE PREFERRED STOCK

                                       OF

                          POWER EFFICIENCY CORPORATION

    Power Efficiency Corporation, a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware, DOES
HEREBY CERTIFY:

    That the Board of Directors of said corporation, pursuant to Section 242
of the Delaware General Corporation Law, adopted the following resolutions
amending the Certificate of Designation of Series A Convertible Preferred
Stock of Power Efficiency Corporation:

    FIRST:  RESOLVED, that pursuant to the authority vested in the Board of
Directors, the Certificate of Designation of Series A Convertible Preferred
Stock of Power Efficiency Corporation is hereby amended so that, as amended,
Section 1 shall read as follows:

    1.  Designation of Series of Preferred Stock. Of the 10,000,000 undesignated
shares of the Company's authorized Preferred Stock, (i) 3,366,844 shares shall
be designated and known as "Series A-1 Convertible Preferred Stock," par value
$0.001 per share (the "Series A-1") and (ii) 6,633,156 shares shall be
designated and known as "Series A-2 Convertible Preferred Stock," par value
$0.001 per share (the "Series A-2") (collectively the Series A-1 and the
Series A-2 shall be referred to herein as the "Series A Preferred Stock").

    SECOND:  RESOLVED, that pursuant to the authority vested in the Board of
Directors, the Certificate of Designation of Series A Convertible Preferred
Stock of Power Efficiency Corporation is hereby amended so that, as amended,
Section 5.1 shall read as follows:

    5.1  Each holder of outstanding shares of Series A Preferred Stock shall be
entitled to the number of votes equal to the number of whole shares of Common
Stock into which the shares of Series A Preferred Stock held of record by such
holder are convertible immediately prior to the record date for the
determination of stockholders entitled to vote (as adjusted from time to time
pursuant to Section 6 hereof) at each meeting of stockholders of the Company
(and written actions of stockholders in lieu of meetings) with respect to any
and all matters presented to the stockholders of the Company for their action
or consideration. Except as provided by law, the holders of shares of Series A
Preferred Stock shall vote together with the holders of Common Stock as a
single class on all matters on which holders of Common Stock shall have a
right to vote.

<PAGE>

    THIRD: RESOLVED, that pursuant to the authority vested in the Board of
           Directors, the Certificate of Designation of Series A Convertible
           Preferred Stock of Power Efficiency Corporation is hereby amended so
           that, as amended, Section 6.4.3 shall read as follows:

    6.4.3 Issue of Options and Convertible Securities Deemed Issuance of
Additional Shares of Common Stock. If the Company at any time or from time to
time after the Original Issue Date shall issue any Options or Convertible
Securities (other than the Revolving Credit Note dated May 8, 2003 issued by the
Company to Summit Energy Ventures, LLC) or shall fix a record date for the
determination of holders of any class of securities entitled to receive any such
Options or Convertible Securities, then the maximum number of shares of Common
Stock (as set forth in the instrument relating thereto without regard to any
provision contained therein for a subsequent adjustment of such number) issuable
upon the exercise of such Options or, in the case of Convertible Securities and
Options therefor, issuable upon the conversion or exchange of such Convertible
Securities, shall be deemed to be Additional Shares of Common Stock issued as of
the time of such issue or, in case such a record date shall have been fixed, as
of the close of business on such record date, provided that in any such case in
which Additional Shares of Common Stock are deemed to be issued:

    (A) no further adjustment in the applicable Conversion Prices shall be made
upon the subsequent issue of Convertible Securities or shares of Common Stock
upon the exercise of such Options or conversion or exchange of such Convertible
Securities; and

    (B) if such Options or Convertible Securities by their terms provide, with
the passage of time or otherwise, for any increase in the consideration payable
to the Company, or decrease in the number of shares of Common Stock issuable,
upon the exercise, conversion or exchange thereof, the applicable Conversion
Prices computed upon the original issue thereof (or upon the occurrence of a
record date with respect thereto), and any subsequent adjustments based thereon,
shall, upon any such increase or decrease becoming effective, be recomputed to
reflect such increase or decrease insofar as it affects such Options or the
rights of conversion or exchange under such Convertible Securities, provided
that no adjustment pursuant to this clause (B) shall have the effect of
increasing the Conversion Prices to an amount that exceeds the lower of (i) the
applicable Conversion Prices on the original adjustment date, or (ii) the
Conversion Prices that would have resulted from any issuance of Additional
Shares of Common Stock between the original adjustment date and such
readjustment date.

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    FOURTH: RESOLVED, that pursuant to the authority vested in the Board of
            Directors, the Certificate of Designation of Series A Convertible
            Preferred Stock of Power Efficiency Corporation is hereby amended so
            that, as amended, Section 6.4.4 shall read as follows:

    6.4.4 Adjustment of Conversion Price Upon Issuance of Additional Shares of
Common Stock. In the event the Company shall, after the Original Issue Date,
issue Additional Shares of Common Stock (including Additional Shares of Common
Stock deemed to be issued pursuant to Section 6.4.3), without consideration or
for a consideration per share less than either of the Conversion Prices (the
"New Conversion Price") in effect on the date of, and immediately prior to such
issue, then and in such event, the applicable Conversion Prices shall be
reduced, concurrently with such issue, to a price (calculated to the nearest
tenth of a cent) equal to the New Conversion Price. In the event that any
portion of the Revolving Credit Note issued by the Company to Summit Energy
Ventures, LLC, dated May 8, 2003, is converted into Series A-1 Preferred Stock,
the Series A-1 Conversion Price shall be reduced to a price equal to $0.183. In
no case, however, will such conversion cause the Series A-1 Conversion Price to
be raised if such Conversion Price was below $0.183 prior to the conversion of
the Revolving Credit Note. An adjustment made to the Series A-1 Conversion Price
due to the conversion of the Revolving Credit Note does not lock the Series A-1
Conversion Price at $0.183 and such Conversion Price may be reduced below $0.183
as provide elsewhere in this Article 6.

    IN WITNESS WHEREOF, Power Efficiency Corporation has caused this certificate
to be signed by Raymond J. Skiptunis, its President and Chief Executive Officer,
this 8th day of May 2003.

                                           POWER EFFICIENCY CORPORATION

                                           By:__________________________________

                                           Raymond J. Skiptunis, President & CEO

ACKNOWLEDGED:

By:__________________________________

Timothy Franzen, Secretary

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