A 18W LED GLS A80 bulb that acts as a direct replacement for traditional 120 watt rated incandescent GLS lamps. Designed by V-Tac to be energy efficient and reliable these bulbs feature an integral Samsung chip and an illumination lifespan of 30000 hours. The bulb is non-dimmable and will provide 2000 lumens of cool white (4000 kelvin) light. Supplied with an E27 edison screw cap base. Lamp Dimensions Diameter 180mm x Length 135mm. Please note that the true colour output of lighting products should be based only on the Kelvin rating. The descriptors warm white cool white daylight etc are used only as guides to describe the colour of the light and can vary between brands.