Simple, intelligent & secure: choose continuously from over 16 million RGB colours and 50,000 white tones controllable and dimmable via remote control (not included) or via Bluetooth with the free AwoX Smart Control app The energy-saving LEDs provide pleasant light (21 watts, 2700 lumens) Grouping: living areas can be grouped together to control lights simultaneously This product is a surrounding product with a light source of energy efficiency class E; surrounding products are luminaires that can be disassembled to separately check the included light source(s)