10%-100% Dimmable➤ 8 pack 10W white track lighting with track rail, 24° beam angle, 800 Lumen real output for each(50w halogen equivalent), these led track lighting heads can smoothly dim from 10% to 100% with TRIAC Type dimmer Flicker-Free, No Buzz, CRI 90+➤Flicker-free technology protects your eyes, while CRI 90+ vividly shows the true color of the object EASY TO INSTALL & USE➤The track light kit come with a live end feed which is easy to hardwire. You can freely adjust multiple angles, up and down or right and left, to fit the environment Over 40,000hrs Lifespan➤ Unlike Old halogen bulbs puts out a ton of heat and don't last long, this LED track light kit is a great track lighting fixture 3 Years Waranty➤ Any problems with your track lights, pls feel free to contact us for a replacement, and we'll respond to you ASAP 8-lights LED track lighting Fixtures Ceiling with 6.5FT H Type Track Rail