A value pack of 10 warm white Crompton Dimmable COB (chip on board) LED GU10 spotlight light bulb. Giving out over 450 lumens in light, 75W in old money, they consume only 5W of power and are designed as a direct retrofit for the in-efficient halogen GU10s. Lasting an incredible 30,000 hours we guarantee that this is about to become a bestseller.This spotlight lamp is traditionally known as a PAR16 with a GU10 2-pin twist and lock (10mm apart) base.For use with trailing edge dimmer switches only.Please visit the manufacturer\'s website for up-to-date dimmer switch compatibility lists for this Crompton Lamps LED GU10 Spotlight light bulb before purchase.To find the answers to some common questions about LED dimming, please read our guide Dimming for Dummies.Need more help in choosing a suitable spotlight bulb? Read our guide What is a GU10 Spotlight Bulb.