This 120-Volt, line voltage, linear track fixture, will work with any standard Hampton Bay linear track. The fixture installs on the track in less than a minute, with a quick 1/4 turn to lock in place, and is multidirectional to shed light in much needed areas. The fixture uses a brilliant, 50-Watt, GU10-16, 120-Volt Halogen light bulb which is included. For replacement bulbs use SKU # 718-309. This fixture works with an incandescent dimmer switch, and is not to be used with low voltage dimmers.