From V-tac a 10 watt LED R80 reflector bulb supplied with an E27 edison screw cap base. The bulb is non-dimmable and will provide 30000 hours of replicated daylight light offering an output of 800 lumens. A built in Samsung chip allows this lamp to be reliable and energy efficient acting as an 75W incandescent equivalent. Ideal for a wide range of applications in both domestic and commercial environments. Lamp Dimensions Diameter 80mm x Length 114mm. 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.