SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 and 15(d) of the
                         Securities Exchange Act of 1934


Date of Report (date of earliest event reported):   March 27, 2001


                            ONLINE POWER SUPPLY, INC.
- --------------------------------------------------------------------------------
              Exact Name of Registrant as Specified in its Charter)

           Nevada                       00-29669                 84-1176494
- -----------------------------    -----------------------    --------------------
(State or other jurisdiction      (Commission File No.)       (I.R.S. Employer
      of incorporation)                                      Identification No.)



     8100 South Akron Street, Suite 308
     Englewood, Colorado 80112                                   80112
- ----------------------------------------------       ---------------------------
     (Address of Principal Executive Offices)                  (Zip Code)


       Registrant's telephone number, including area code: (303) 741-5641


                                 Not Applicable
- --------------------------------------------------------------------------------
               (Former Name, Former Address or Former Fiscal Year,
                          if Changed From Last Report)








ITEM 5.   OTHER EVENTS

         OnLine Power Supply,  Inc. today announced it has completed  safety and
reliability  testing  for  its  OPS-500-385  PFC  Module,  clearing  the  way to
commencing commercialization of this product.

         The Company has  successfully  completed  its HALT (Highly  Accelerated
Life Testing) ruggedization testing, which is a state-of-the-art testing process
used to uncover design and production process flaws. The HALT testing, performed
by QualMark Corporation,  allows manufacturers to identify and correct potential
quality issues early in the design and production cycle in order to avoid costly
recalls and redesigns after the product has been deployed in the field.

         The  Company is  pleased  with the  product's  HALT  results.  The unit
maintained its operating  conditions under 30G's of vibration across three axes,
and  from  -90(degree)C  to  +130(degree)C.   These  are  not  normal  operating
conditions  since the systems into which the units are built are  safeguarded to
more conservative operating conditions.

         The Company's unique, patent-pending PFC Module converts AC power to DC
power  suitable  for use in  sensitive  electronics  applications.  The  Company
believes the product is the smallest,  lightest,  most efficient power supply in
its industry representing the first appreciable technological advancement in the
last 20 years.

         Also, the Company has received a Notice of  Authorization  to apply the
UL and C-UL  recognition  marks to its  OPS-500-385  PFC Module in the U.S.  and
Canada.  The  UL  mark  on a  product  means  the UL has  tested  and  evaluated
representative  samples  of that  product  and  determined  that  they meet UL's
requirements for use in the United States.  The C-UL mark is applied to products
for the Canadian market.  The products with the C-UL mark have been evaluated to
Canadian safety  requirements,  which may be somewhat different from U.S. safety
requirements.

         OnLine Power Supply,  headquartered in Englewood,  Colorado,  develops,
manufactures  and markets AC to DC power  conversion  products  and supplies for
telecommunications, data communications, networking and industrial applications.

         Except for the historical information,  all of the information which is
contained in this 8-K Report constitutes  forward-looking  statements within the
meaning  of  Section  27A of the  1933  Act and  Section  21E of the  Securities
Exchange  Act of 1934.  Specifically,  all  statements  regarding  our  business
strategy  and plans and  objectives  of  management  for future  operations  are
forward-looking  statements.  These forward-looking  statements are based on the
beliefs of management,  as well as assumptions made by and information currently
available to  management.  These  statements  involve  known and unknown  risks,
including the risks  resulting from economic and market  conditions,  accurately
forecasting  operating and capital  expenditures  and capital needs,  successful
anticipation  of  competition  which  may  not  yet  be  fully  developed,   the
uncertainties  of litigation,  and other business  conditions.  The use of words
confident,  prove, anticipate,  believe,  estimate, expect, may, will, continue,
and intend and similar words or phrases are intended by us to identify  forward-
looking  statements  (also known as  cautionary  statements).  These  statements
reflect our current views with respect to future events. They are subject to the
realization in fact of assumptions, but

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what we now think will happen may turn out to be inaccurate or  incomplete.  Our
actual  operating  results  and  financial  performance  may  prove  to be  very
different from what we now predict or  anticipate.  Although we believe that our
expectations  are reasonable,  we cannot assure you that our  expectations  will
prove to be  correct.  Based on changing  conditions,  should any one or more of
these  risks  materialize,  or should any of our  underlying  assumptions  prove
incorrect,  actual results may vary  substantially  from what we now anticipate,
believe,   estimate,   expect  or  intend.   All  subsequent  written  and  oral
forward-looking  statements  attributable to us are expressly qualified in their
entirety by these cautionary statements.



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                  ONLINE POWER SUPPLY, INC.


Dated: March  27, 2001            By:       /s/    Kris M. Budinger
                                         ---------------------------------------
                                         KRIS M. BUDINGER, President and CEO


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