Gymnasiums, multi-purpose rooms, fitness centers, indoor sports facilities, recreation areas, hockey arenas, etc. 2' and 4' lengths, up to 36,000 lumens. High flux linear LED modules: 80+ CRI, 3500K, 4000K or 5000K CCT. Constant current LED power supplies, power factor > 0.9, THD < 20%, 50-60Hz, universal voltage 120-277v or 347v, 480v. All fixtures are made in the USA and 100% bench tested.