【APP Control & No Internet Required】Download the "BRmseh" APP, turn on the Bluetooth of the mobile phone, click on the home page to add an , and it will automatically connect. No registration required, no internet required. Then you could easily control multiple smart downlights via your phone, enjoying lights color change, dimming and group control ets. 【BT Mesh Connection】 This smart downlight is equipped with bluetooth 5.0 chip to realize Mesh function. The simple and practical APP operation interface let you can easily group control all the lights at the same time (can control up to 64 lamps). The BT Mesh function is an excellent solution for multi-light control, which solves the shortcoming of IR remote control lights with short control distance and less control lights, WIFI lights being disconnected due to the influence of network speed. 【Daily Lighting & Mood Lighting】SikSog 12W (1000LM) Smart LED recessed downlight is 5000K daylight white, support 1%-100% brightness adjustable that meets daily lighting needs; In addition, it also provides RGB multicolor lights, you can use the APP to choice colors according to different scenes or different needs.