The White Night is designed to improve lighting in the rear of your vehicle. It is like having headlights when you back up. Using two 55-watt halogen lamps, the "White Night" puts out 130,000 candlepower with an 80' low-wide pattern of light. These lights can be set to come on when vehicle is put in reverse or switched on for use as an extra source of light for hooking up a trailer. Constructed from 2 pieces of black ABS plastic housing that snaps together for easy bulb replacement.