Orion Energy Systems, a leading designer and manufacturer of high-performance, energy-efficient lighting platforms, today announced that it intends to offer US $15,000,000 of shares of its common stock in an underwritten public offering. All of the shares in the offering are to be sold by Orion. Orion also expects to grant the underwriter a 30-day option to purchase additional shares equal to up to 15% of the aggregate number of shares to be sold in the offering to cover over-allotments, if any. The offering is subject to market conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the final size or terms of the offering.

In connection with the offering, Craig-Hallum Capital Group LLC is acting as sole managing underwriter.

Orion expects to use the net proceeds from the offering for general corporate purposes, which may include, but are not limited to pursuing acquisitions, expanding its LED lighting business and supporting its working capital needs.

A shelf registration statement (No. 333-193411) relating to the shares of common stock to be issued in the proposed offering was filed with the Securities and Exchange Commission (SEC) and is effective. A preliminary prospectus supplement and accompanying base prospectus relating to the offering have been filed with the SEC and are available on the SEC’s website located at www.sec.gov. Electronic copies of the preliminary prospectus supplement, when available, may be obtained by contacting Craig-Hallum Capital Group, 222 South Ninth Street, Suite 350, Minneapolis, MN 55402, telephone 612-334-6300, email: prospectus@chlm.com. Before you invest, you should read the preliminary prospectus supplement and accompanying prospectus in the registration statement and other documents Orion has filed or will file with the SEC for more complete information about Orion and the offering.

This press release does not constitute an offer to sell, or the solicitation of an offer to buy, these securities, nor will there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale is not permitted.