MDB Capital Group, LLC
401 Wilshire Boulevard, Suite 1020
Santa Monica, CA 90401
June 8, 2012
Securities and Exchange Commission
100 F. Street, N.E.
Washington, D.C. 20549
Re: ZBB Energy Corporation
Registration Statement on Form S-1
File No. 333-179541
Ladies and Gentlemen:
In connection with the Registration Statement on Form S-1 of ZBB Energy Corporation (the “Company”), the undersigned hereby joins the request of the Company that the effectiveness of said Registration Statement be accelerated to 4:30 p.m. Eastern time on June 12, 2012, or as soon thereafter as practicable.
Very truly yours,
MDB CAPITAL GROUP, LLC
By: /s/ Gary Schuman
Gary Schuman
CFO & CCO