5 Colour Temperatures in 1 Track Light Heads: With the switch on the back of the track light, you can freely switch between 5 colour temperatures: 2700K Warm White, 3000K Soft White, 4000K Soft White, 5000K Bright White, 6000K Cool White, which makes it easy to adjust the track light head to your preferred colour setting 15° to 60° Zoomable: AIBISOD 10W 5-Color Zoomable Track lighting replacement heads black is a compact, high-performance fixture that adjusts the angle of illumination from 15° to 60°, making it easier to locate lighting targets, and produces 9,00 lumens at 10 watts with less than one-quarter of the energy consumption of traditional bulbs, making it a dependable companion to accent lighting 10%-100% Dimmable: AIBISOD 5-color zoomable dimmable LED H track light head supports seamless dimming function (10%-100%) via TRIAC-type dimmer, suitable for any atmosphere or decoration Compatible with Halo track systems only: AIBISOD's H-Track light Heads are only compatible with 120V single circuit H Track lighting systems, they are not compatible with Juno and Lightolier type track systems, please make sure that the rail system is compatible with the H-Track Heads before purchasing Flexible and great lighting track light head: Small and compact 10W black zoomable track light head with CRI>90+, even light distribution for rich colors, the zoomable track light head is ideal for highlighting artwork, living rooms, kitchens, offices, commercial spaces and more. 5 Color Selectable: Experience versatile lighting options with the back switch that allows you to choose from color temperatures of 2700K, 3000K, 4000K, 5000K, and 6000K, perfectly matching your room's ambiance. 15° to 60° Zoomable: Similar to a camera's zoom lens, our track light heads offer adjustable focus, enabling you to control the lighting area and create the ideal light spot. 10% to 100% Dimmable: AIBISOD 12W LED track lighting heads emit a real output of 1,000 lumens (equivalent to a 70W halogen), and can smoothly dim from 10% to 100% using a TRIAC dimmer, allowing you to achieve the perfect lighting level. H Type Track Lighting Rails Compatible: Designed specifically for 120V single circuit H-track lighting rails, our h track lighting heads are not compatible with L-track or J-track systems. Please ensure compatibility before purchasing. Flicker-Free, Anti-Glare: With flicker-free performance and anti-glare properties, our led track light heads provide excellent color rendition(CRI 90+), protect your eyes, and accurately showcase the true colors of objects. Ideal for accent lighting in commercial settings, shop windows, homes, kitchens, and more.