The black 120 volt puck light is prefect for lighting up counter tops, bars, display cases or where ever a unique light is needed. The puck light comes with a 20 watt 120 volt halogen bulb, 3 inch lead and tail wires for power hook up and frosted twist-lock lens (which reduces glare). The punk light can be surface or recessed mounted and you can link up to ten lights together. The puck light is dimmable with most standard incandescent dimmers and the dimensions are 2-5/8 inches wide by 1-3/8 inches high. The puck light requires a plug in the wall power cord (ALLVP-PC6) and is sold separately.