These high quality GU10 energy saving LED bulbs are designed for domestic, commercial & retail lighting, & are a direct replacement for existing GU10 Halogen bulbs. Our 4 Watt GU10 bulbs feature 20 individual High Power 5050 SMD LEDs (highest quality chip) with a clear glass cover which produces a light output of an incredible 320 lumens. They are aesthetically & intelligently designed to significantly reduce energy consumption by up to 90% & deliver long life performance: matching & incredible maintenance free 25, 000 hours of use. Our 4 Watt GU10 bulbs give out a huge 120 degree beam angle of light, & are designed to give the widest beam angle of any SMD bulb on the market. Also available in Cool White & in Warm White, with an option for Dimmable or Non-Dimmable, LEDHut's SMD bulbs are the best on the market! LEDHut is a brand you can trust, with many years of lighting experience, we invest heavily in quality control & sourcing the best component parts available to us. We pride ourselves on quality & innovation, offering a comprehensive 5-year warranty & 30-day hassle-free returns on all our LED bulbs, to ensure peace of mind & make sure you are 100% satisfied with your purchase. These LED bulbs are a standard size & are a direct replacement for your existing Halogen GU10 bulbs. For a small investment you could have recovered the cost of your purchase within 6 months of installing your New GU10 Led bulbs. Not only will you have recovered the complete cost of your investment, but you will continue to save the same amount of money every 6 months over the expected 25, 000 hour life of the bulb