A brand new Crompton LED filament GLS that uses 5 watts of power to produce the equivalent output of a 470 lumen 40W Incandescent lamp. The homely 2700K very warm white colour is ideal for lighting areas in a calming yellow light and the retro filament style ensures the lamp looks as good as it performs. It features a standard ES Edison Screw cap which is a common fixture type in UK lamps fixtures. It is fully dimmable with LED compatible dimmer switches such as the Varilight JQP401W. Product dimensions Length 102mm x Diameter 60mm. Product comes with a 2 year guarantee period.