WILMER CUTLER PICKERING
AHLE AND DORR LLP


                                       DRAFT OF APRIL 7, 2005, SUBJECT TO CHANGE
_________, 2005

John Hancock Equity Trust, on behalf of
John Hancock Technology Leaders Fund
101 Huntington Avenue
Boston, Massachusetts 02199

Light Revolution, Inc., on behalf of
Light Revolution Fund
700 Court A
Tacoma, Washington 98402

Ladies and Gentlemen:

This opinion is being delivered to you in connection with the Agreement and Plan
of Reorganization  (the  "Agreement")  made as of ________,  2005 by and between
John Hancock  Equity Trust, a  Massachusetts  business  trust,  on behalf of its
series,  John Hancock  Technology  Leaders Fund  ("Acquiring  Fund"),  and Light
Revolution,  Inc.,  a  Maryland  corporation,  on  behalf of its  series,  Light
Revolution Fund  ("Acquired  Fund").  Pursuant to the Agreement,  Acquiring Fund
will acquire all of the assets of Acquired  Fund in exchange  solely for (i) the
assumption by Acquiring  Fund of all of the Assumed  Liabilities,  as defined in
the Agreement (the "Acquired Fund Liabilities"),  and (ii) the issuance of Class
A shares of beneficial  interest of Acquiring Fund (the "Acquiring Fund Shares")
to Acquired Fund,  followed by the distribution by Acquired Fund, in liquidation
of Acquired Fund, of the Acquiring Fund Shares to the  shareholders  of Acquired
Fund and the termination of Acquired Fund (the foregoing  together  constituting
the "Transaction").  All section references,  unless otherwise indicated, are to
the United States Internal Revenue Code of 1986, as amended (the "Code").

In rendering  this opinion,  we have examined and relied upon (i) the prospectus
for Acquiring Fund dated _________ (ii) the statement of additional  information
for Acquiring Fund dated _________; (iii) the prospectus for Acquired Fund dated
________;  (iv) the statement of additional  information for Acquired Fund dated
_________; (v) the Notice of Meeting of Shareholders Scheduled for June 15, 2005
and the  accompanying  proxy  statement and  prospectus on Form N-14 (the "Proxy
Statement");  (vi) the  Agreement;  (vii)  the tax  representation  certificates
delivered   pursuant  to  the  Agreement  and  relevant  to  this  opinion  (the
"Representation  Certificates");  and (viii) such other  documents  as we deemed
necessary or relevant to our analysis.

In our  examination of documents,  we have assumed the  authenticity of original
documents, the accuracy of copies, the genuineness of signatures,  and the legal
capacity of  signatories.  We have assumed that all parties to the Agreement and
to any other  documents  examined by us have acted,  and will act, in accordance
with the terms of such Agreement and documents and that the




John Hancock Technology Leaders Fund
Light Revolution Fund
_________, 2005
Page 2


Transaction  will be consummated  pursuant to the terms and conditions set forth
in the  Agreement  without  the  waiver or  modification  of any such  terms and
conditions.  Furthermore,  we have assumed that all representations contained in
the Agreement, as well as those representations  contained in the Representation
Certificates  are, on the date hereof,  and will be, at the  consummation of the
Transaction  and  thereafter  as  relevant,  true and  complete in all  material
respects,  and that any representation  made in any of the documents referred to
herein "to the knowledge and belief" (or similar qualification) of any person or
party is, and at the  consummation of the  Transaction  will be, correct without
such  qualification.  We have also  assumed  that as to all  matters for which a
person or entity has  represented  that such  person is not a party to, does not
have, or is not aware of any plan, intention, understanding, or agreement, there
is no such plan, intention,  understanding,  or agreement. We have not attempted
to verify independently any of the above assumptions or representations.

The conclusions  expressed  herein  represent our judgment  regarding the proper
treatment  of the  Transaction  under the income  tax laws of the United  States
based upon the Code, case law, Treasury  Regulations,  and the rulings and other
pronouncements  of the Internal Revenue Service (the "Service") in effect on the
date of this  opinion.  No  assurances  can be given  that such laws will not be
amended or otherwise  changed after the  consummation of the Transaction or that
such changes will not affect the conclusions expressed herein. Nevertheless,  we
undertake  no  responsibility  to  advise  you of  any  developments  after  the
consummation  of the  Transaction in the  application or  interpretation  of the
income tax laws of the United States.

Our opinion  represents our best judgment  regarding how a court would decide if
presented with the issues  addressed  herein and is not binding upon the Service
or any court.  Moreover,  our  opinion  does not provide  any  assurance  that a
position taken in reliance on such opinion will not be challenged by the Service
and does not constitute any representation or warranty that such position, if so
challenged, will not be rejected by a court.

This  opinion  addresses  only the specific  United  States  federal  income tax
consequences of the Transaction set forth below,  and does not address any other
federal,  state, local, or foreign income,  estate,  gift,  transfer,  sales, or
other tax consequences  that may result from the Transaction or any other action
(including any action taken in connection with the Transaction).

On the  basis  of and  subject  to  the  foregoing  and  in  reliance  upon  the
representations,  facts and assumptions  described  above, we are of the opinion
that the  acquisition by Acquiring Fund of the assets of Acquired Fund solely in
exchange  for the  issuance of  Acquiring  Fund Shares to Acquired  Fund and the
assumption of the Acquired Fund  Liabilities by Acquiring Fund,  followed by the
distribution  by Acquired  Fund, in  liquidation  of Acquired Fund, of Acquiring
Fund Shares to Acquired Fund  shareholders  in exchange for their  Acquired Fund
Shares and the termination of Acquired Fund, will constitute a  "reorganization"
within the meaning of Section 368(a) of the Code.



John Hancock Technology Leaders Fund
Light Revolution Fund
_________, 2005
Page 3


This  opinion is being  delivered to you solely in  connection  with the closing
condition  set forth in Section 8.5 of the  Agreement.  This opinion is intended
solely for the benefit of you and the  shareholders  of the Acquired Fund and it
may not be relied upon for any other  purpose or by any other  person or entity,
and may not be made  available to any other person or entity,  without our prior
written consent.



                                                 Very truly yours,

                                                 WILMER CUTLER PICKERING
                                                 HALE AND DORR LLP


                                                 By:      ______________________