10%-100% Dimmable➤ 16 pack 10W Black track lighting, 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 Match with H Type Track➤These h type track lighting heads are only compatible with single circuit H type track lighting systems, and won't fit with J or L track(Track Rail is not included in this package) Over 40,000hrs Lifespan➤ Unlike Old halogen bulbs puts out a ton of heat and don't last long, this LED track light is a great replacement fixture that will save money on electricity, heating, and replacement costs 3 Years Warranty➤ Any problems with your track lights, pls feel free to contact us for a replacement, and we'll respond to you ASAP VANoopee 16-Pack 10W Dimmable LED Track Lighting Heads H Type Track Light Replacement Fixtures Bright 3000K Warm White Ceiling Spotlight for Accent Task Art, Flicker Free CRI90+ 24° 800lm Black