Please feel free to ask any questions in the comments. SPAHER Spotlight for Lighting Rail LED Duct Rail Lighting, 100W Equivalent Plant Growth Light, Easy Installation, Adjustable Angle, No Bulb Required, Bright and Stylish, Suitable for Entrance, Living Room, Kitchen, Interior, 10W 1200LM, Black (Daylight, Set of 6) [Duct Rail Dedicated] This is a lighting fixture exclusively for duct rails. It has built-in LEDs, making it brighter and more energy-efficient than other spotlights. (Bulb included) [240° Adjustable] The irradiation angle can be adjusted from 0 to 240° depending on the application. It can be moved on the rail, allowing you to create a stylish space utilizing lighting. [CRI≥95 & Eye-Friendly] It has a strong ability to restore the color of objects, allowing the eyes to easily identify the color of objects. No flicker, gentle on the eyes. [COB Chip & Heat Dissipation] The small spacing prevents damage to single lamp beads and is less likely to be damaged during handling. High thermal conductivity and convection aluminum are used, providing stability during use. [Easy Installation] Simply place the spotlight on the corresponding duct rail and turn it to the right until you hear a click to complete the installation. Installation is possible directly without using any other tools.