Description: 100% Brand New and High Quality This product requires a Zigbee hub enabled device to operate. This smart RGBCW work with tuya zigbee 3.0 hub. It allow to dimmer or set color or color temperature in the tuya app. Color adjust with music rhythm. Several scene for choice to make a atmosphere such as reading, working, soft, colorful. Timer setting. Smart scenes and automations allow, can work with tuya zigbee or tuya wifi sensor. Adjust the color temperature from 2700-6500K, make the light you want. Warm white to cold white random change randomly, Adjust the brightness as your like. 3.5 inch Downlight suit for3.5-4.0 inch (89-102mm) ceiling can Voice control by Alexa Google Home / Siri via SmartThings gateway 3.5 InchSpecifications: Product parameters: 3.5 Inch Wattage: 7W Luminous flux: 700LM Product size: 115*60mm Need hole size: 89-102mm Color temperature range: 2700-6500K Package Included: 1*Smart downlight 1*Instruction 4 InchSpecifications: Product parameters: 4 Inch Wattage: 10W Luminous flux: 1000LM Product size: 145*70mm Need hole size: 110-130mm Color temperature range: 2700-6500K Package Included: 1*Smart downlight