Warehouse lighting must balance three competing demands: adequate illuminance for safety and productivity (150–300 lux per EN 12464-1), energy efficiency (≥120 lm/W), and durability (50,000h+ lifespan, IP54+). LED high bay lights with wide beam angles (90–120°) are the industry standard for mounting heights of 6–15 meters. Key specs: CRI≥80 for picking accuracy, UGR<22 for operator comfort, 0-10V/DALI dimming for daylight harvesting, and motion sensors for aisle control. Top brands: Philips, Osram, Cree, and leading Chinese manufacturers (Sanan, MLS, Hongli). By switching from 400W metal halide to 150W LED high bay, a 10,000m² warehouse saves ~$15,000/year in electricity (at $0.12/kWh).