MANITOWOC, Wis.--(BUSINESS WIRE)--Orion Energy Systems, Inc. (Nasdaq Capital Market: OESX), a leading designer and manufacturer of high-performance, energy-efficient lighting platforms, today announced financial results for its fiscal 2016 first quarter ended June 30, 2015, highlighted by strong LED sales and solid gross margin expansion. Operating and Financial Highlights Total revenue for the fiscal 2016 first quarter was $16.6 million, an increase of 24.6% compared to $13.3 million in the pr