... bridgelux 45mil COB 3.Meanwell driver 4.fast delivery time TOP Quality 250w 45mil bridgelux led highbay light New model ... screws very tightlyAs Picture No.2 Showed, Wrest hanger into top cap, wrest lock screw very tightlyAs Picture No.3 ... used in factory, workshop, warehouse, supermarket, exhibition, stadium hall, parking, gas station, gymnasium etc where need indoor lighting.Warranty&Return Policies ...