3000K /4000K/5000K in one fixture,30W LED track light equivalent to 4*50W halogen. Integrated with COB（chip on board), not bulb replaceable Four pivoting track heads direct and focus light where needed(90° rotatable of the light head and 330° rotatable of the main bracket) Dimming smoothly from 10% - 100%, flicker-free.Compatible with most Leviton and Lutron dimmers(Please refer to the dimmer list) Includes all mounting hardware and a canopy mounting plate for quick and easy installation - can be installed on a sloped or vaulted ceiling 3-year warranty assures the rated 30,000 lifetime (average 3-5 hours/day).Contact us for an easy and fast replacement. 4-Head LED Dimmable