... design 2.Easy maintenance 2.50000hrs,3year warranty 3.>83Lm/W,+ future upgrading 4.Industry,square,parking lot use LED HIGH BAY ... LIGHTAll LED High Bay Lights are in modular design, each made of ... tunnel lighting and high bay lighting.The key advantage of modular design is that user can ... module.2. LED Module ---IP patented optics design ensures high luminous efficiency, 18W each and ...