CBConcept UL-Listed GU10 LED Light Bulbs, 5-Pack, 6 Watt, 550 Lumen, Warm White 3000K, 50W Halogen Equivalent, 36&deg;Beam Angle, 120 Volt,Not Dimmable,Recessed/Track Lighting | Designed In San Francisco UL Listed. Meets your local electric code and safety standard. | Designed In San Francisco Superior quality components are used compare to non UL-listed light bulbs on the market. Save over 85% instantly with your electric bill. Directly replace halogen GU10 light bulbs Extended useful lifetime, CRI85+, flicker-free, no UV and IR radiation. Newly patened design for max brightness and balanced lumination. Perfectly fit into all GU10 standard socket. Hassle Free warranty from CBconcept to assist you finding and using the best light bulbs in the market.