Connection via WiFi Easy installation Ready to use in 3 simple steps 100+ RGB color options CCT: 2200-4000K (white color) Dimmable via app and remote control This smart RGB-CCT lamp with E27 fitting changes the white color temperature (2200-4000K) and the color itself using the Calex remote control and the free Calex app to operate the lamps. Connect the lamp to WiFi and choose from more than 100 colors, set timers and create every conceivable routine to optimize your living pleasure.These smart lamps work on a normal wall switch and via WiFi. Not on a dimmer switch. Via the Calex Smart remote control and the free Calex app you can connect these lamps with WiFi and set them to the desired ambiance. Performance Dimmable Yes Colour temperature (min) 2200 K Colour temperature (max) 4000 K Light colour Multi Equivalent bulb power 5 W Luminous flux 806 lm Bulb shape Candle Bulb power 5 W Power Energy efficiency class F Weight & dimensions Weight 43 g Length 109 mm Diameter 6.2 cm Packaging