This 120 volt, line voltage, flex track fixture, will work with the 120 volt standard flex track starter kit or the 120 volt Adjustable Flex Track Starter Kit both of which are sold separately. The smoked glass shade will add a contemporary feel to any room. This fixture works with any standard incandescent dimmer switch. The fixture installs on the flex track in seconds and uses a brilliant, 50-watt, 120 volt, GU10-16, light bulb. This fixture is UL listed.