This dimmable LED GU10 replacement spot light bulb from Crompton Lamps sports a full glass body and Chip On Board LED technology, allowing it to resemble a halogen spotlight while using a fraction of the energy.It screws directly into existing GU10 bases without any additional rewiring required, making it the perfect retrofit replacement for your halogen GU10 spotlights. Unlike other LED replacement light bulbs of the same class, it also shares the same physical characteristics as its halogen equivalent thanks to a full glass body and COB lens.This ultimately makes the process of replacing your halogen light bulbs as seamless as possible, with shared aesthetics making it virtually impossible to tell the two light bulbs apart and the only noticeable difference being in your substantially reduced lighting bill.This dimmable LED GU10 light bulb is compatible with a number of trailing edge and leading edge dimmer switches.This spotlight lamp is traditionally known as a PAR16 with a GU10 2-pin twist and lock (10mm apart) base.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.