Our R4 Series lights are a versatile product line of 4 inch round LED lamps including this White LED Backup/Cargo lamp. Defined with bright, high quality Gen 2 LEDs this light can be used in Single or Dual light applications. The Single Light (ECVR4xB1W) has nearly twice the intensity as the Dual Light (ECVR4xB2W) making it a great choice for illuminating cargo areas and stepwells. Pure white LED output will brighten and illuminate your surroundings and the low amp draw is gentle on your engine. When you need a softer white light output or will be using two lights simultaneously choose our Dual Light option. Lights meet or exceed SAE J593, DOT, FMVSS 108 & CMVSS requirements.