This amazing light bulb simply plugs into a standard bayonet fitting (B22) lamp socket, & then produces an amazing lightshow that reacts to sound. Music with a good bass works really well, but a clap or a shout will just work just as well. These bulbs are great for parties, you would be hard pressed to get this much funky lighting in a unit so small! Uses only 3W of power & and generates next to no heat, the bulb is supplied by a UK leading educational & sensory company, so apart from being a brilliant disco light, it also makes a super affordable product for sensory rooms. Operates within 85-260V range Not suitable for a dimmer, or remote control switches Easy installation (just the same as changing a lightbulb) Low heat & power consumption Lifespan: approx 20, 000 hours 13cm length: 7cm diameter