This ceiling light can be run great with any 12volt dc power supply With a clear acrylic panel above the base where SMD LEDs are mounted, the ceiling light is doing great as both illumination fixture and decoration There’s a frosted part on the lens which could soft the beam, your eyes will be well protected while the ceiling light is still providing pleased ambient light Compared to a conventional halogen/incandescent bulb with similar brightness, it saves 80% energy. Leave it on and get some fun without worrying your battery!! If you wish for more or other types of LED lights for your van, you may search "Dream Lighting"