Each puck light is made of pvc plastic with one male connector plug. This puck light is a 120 volt light fixture with a 25 watt halogen bulb. It can be surface mounted or it can be installed in a cutout in the top panel of the cabinet. The diameter of the cutout is 3-3/8 inches. Kit includes puck, touch lead, 3 stage touch dimmer, and brass touch button. Perfect for use on display cabinets. Furnlite FC-737 Black. Contact customer service for additional information and bulk pricing.