The housing of the led high bay is made by light aluminum alloys; it takes special sealing and coating on its surface. All the measures are used to ensure the reliability, and durability of the led high bay in the extreme environment. IP ranking of led high bay is always IP65, you could lift to IP67 if necessary. The led high bay could both works in the inside and outside lighting applications. There are many other advantages in led high bay, lower voltage, current, less heating emitting, well-designed thermal management, no worry for the security. All these advantages make it work well in some dangerous environment. E-lite led high bay has excellent performance in the energy efficiency. The lighting efficiency of the whole lamp could reach 110 lm/w, which means the 450W led high bay could replace the 1500W high pressure sodium lamps without changing the lighting views.