A Prolite branded LED GLS lamp that uses just 4W of power and emits a 2700K light output. It has a brightness of 350 lumens making it equivalent to a 35W Incandescent lamp. The standard BC fixture ensures it is compatible with most UK households (please check to ensure base type required). When used with a Varilight V-Pro dimmer switch this lamp is fully dimmable giving fine tuned control over its output. The A efficiency rating alongside the 25000 hour average lamp life provides excellent savings vs older types of technology (halogen incandescent fluorescent). Please note that this lamp is 240V. Dimensions Length 105mm Diameter 60mm.