Adjustable Philips Hue LED spotlight including dimmer switch & White Ambiance GU10 LED bulb Whether it is used for reading, handicrafts or writing, the LED spotlight Runner always creates the right ambience & an optimum lighting result, which it demonstrates perfectly due to its various light setting options & the flexible light head. There are two options for controlling the spotlight & customising the colour temperature & brightness of the included White Ambiance GU10 LED bulb: you can either control the light using the dimmer switch, without a connection to the Hue system, or you can connect the light to an existing Hue bridge & integrate it into a smart home system which can be controlled via the Hue app. The Hue bridge is not included. Energy efficiency class:A