AAA Batteries Not Included: Please note that the remote control requires AAA batteries, which are not included. Make sure to purchase them separately for uninterrupted control of your track lights Remote Control Color Changing: With the TuyuBEE LED Track Lighting Heads, you can easily change the color temperature from 2000K to 6000K to create the perfect ambiance for any occasion. The included remote control allows for convenient and effortless adjustments Remote Control Dimming: Enjoy customizable lighting levels from 10% to 100% with the remote control dimming feature. Note that the lights are not compatible with wall dimmer switches; use the remote control for dimming purposes Memory Function: The remote control includes a memory function that recalls your previously set color temperature and brightness. This enables you to effortlessly enjoy the same lighting when you turn on the lights next time Flicker-Free, CRI 90+: TuyuBEE LED Track Light Heads provide flicker-free lighting, ensuring a comfortable and eye-protective experience. With a Color Rendering Index (CRI) of 90+, these track lights accurately display the true colors of objects, making them ideal for accent lighting in commercial spaces, shop windows, homes, kitchens, and more Easy to Install: These h type track lighting heads are specifically designed for single circuit H track lighting systems. Please ensure that your track lighting system is compatible before making a purchase. (Note: Track rail is not included in this package) 3 Years Waranty: Rest easy knowing that your TuyuBEE LED Track Lighting Heads are backed by a 3-year waranty. The solid aluminum body ensures excellent heat dissipation, extending the lifespan of the lights up to 40,000 hours. If you encounter any issues, simply contact us for a replacement, and our responsive customer service team will assist you promptly TuyuBEE LED Track Lighting Heads H Type Track Light Heads Dimmable, 2000K 3000K 4000K 5000K 6000K Adjustable, Flicker Free CRI90+ 24° 10W 800lm, White (4 Pack)