The Philips Master Value LEDspot range of LED GU10 Spotlights are designed to provide viable and cost effective alternatives to the outgoing halogen spotlights that have been phased out by the UK and European Union.These LED spotlights are more efficient, more reliable and longer-lasting than those they are designed to replace, yielding a raft of savings throughout their lifetime, from instantaneous energy savings to reduced maintenance costs further down the line.This 240V LED GU10 Spotlight uses just 3.7W but delivers the same light quality and brightness as a 35W Halogen GU10. Additionally, the 2,000 hour rated lifetime of comparable halogen spotlights pales into insignificance when compared to the 25,000 hours of this LED version. With a CRI>90 rating, this LED lightbulb provides exceptional colour rendering, ensuring your home's interiors and furnishings look vibrant, natural, and true to life. Additionally LED technology is inherently more efficient than halogen light bulbs and ultimately gives off less heat, UV and IR, meaning that LED spotlights are much better suited to heat-sensitive applications related to food, organic materials and paintings.This particular version retrofits directly to existing GU10 fixtures and diffuses its light within a 36 beam angle.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 Philips 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.