... ,+ future upgrading 4.Industry,square,parking lot use LED HIGH BAY LIGHTAll LED High Bay Lights are in modular design, each made of ... lighting and high bay lighting.The key advantage of modular design is that user can replace the light module or ... high luminous efficiency, 18W each and output >1620lm. 3. Housing --- Aluminum alloy, uniquely designed, flexible for 20W-280W 280W LED High Bay Light ...