 MANITOWOC, Wis., Aug. 03, 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 announced that inside.lighting ranked the 209.8 lumens per watt LPW performance of its ISONTM High Bay Industrial Fixture HBIF3 as the industrys most energy efficient LED High Bay light fixture within the High Lumen category fixtures generating 19,000 - 40,000 lumens. 