led high bay always works in dusty, humid environment. To make the led high bay more reliable and durable, led high bay need a well-designed structure, housing, led chips. In such extreme environment, the led high bay has to be sealed all the connections, from the light engine to the power supply. E-lite special design is that the outside housing. This well-designed outside housing is made for air convection that will be help to thermal management. In the inevitable shaking environment, the led high bay need to be placed on anti-loosening holder, that is necessary for safety.