... 4.over 50000hs lifespan 5.2 years warranty High power led factory lighting 120w high bay Description Item NO.BL-HB1- ... chip design. 4. LED Driver: Built-in-cross-flow Meanwell power supply, to ensure the lamp’s stability. 5. Heat-pipe ... industrial high bay lighting 120wfor industrial lighting widely used in factory, workshop, warehouse, supermarket, exhibition, stadium hall, parking, gas station, ...