 MANITOWOC, Wis., June 01, 2021 GLOBE NEWSWIRE -- Orion Energy Systems, Inc. NASDAQ: OESX Orion Lighting , a provider of energy-efficient LED lighting, controls and IoT systems, including turnkey project implementation, program management and system maintenance, today reported results for its fiscal 2021 fourth quarter Q421 and year ended March 31, 2021 FY 2021. Orion will hold an investor call today at 4:30 p.m. ET details below. 