The LED Track Heads are offered in three different sizes and Lumens output. Choose from white, black or satin nickel colors. Features long life LED’s that last up to 35, 000hrs. With LED’s there are no lamps to replace, saving time and money normally spent in replacement costs. The Heads are fully dimmable and offer 350º swivel capability so you can direct light where you need it most. Fully compatible with Home Depot track systems, model numbers: 939308 and 939044.