American Lighting ALPX40BK 12-Volt Under Cabinet Puck Lighting Kit, Xenon Bulb, 2 Pack, Black 12 Volt Xenon Bulb, last up to 10,000 hours Available in both steel and plastic Plastic pucks are more affordable Steel pucks feature designer finishes Kits include puck lights with 20-watt Xenon lamps, 48-inch leads and plug-in transformer (except singles) with in-line on/off switch