This starter kit contains three Philips Hue White ambiance light sources with E27 sockets, a Hue Bridge control unit that provides maximum access to the system's functions, and a Hue Dimmer switch that acts as both a wireless switch and remote control. This series of smart lamps allows you to dim your lighting in both brightness (lumen) and in light temperature (kelvin) so you can switch between cold and warm shades of white light when you need it. With Philips Hue, lighting takes the next step in interconnection and integration in the smart home. It is a comprehensive ecosystem that allows you to live with smart lighting in all moments of life. From waking up in the morning with more energy, to going to bed more relaxed, Hue will be there for you at every step of the day.