GSTAR LIGHTING br40 15 Watt Dimmable LED Warm White 2700K ETL Listed E26 Socket, 100 Watt Incandescent Bulb Replacement Light Bulb br40 LED Bulb Lasts Over 30,000 hours With Dimmable Warm White Light Up To 80% Energy Saving Compare To An Incandescent Bulb And Up To 40% CFL Bulb With Only 15 Watt Energy Consumption Mercury Free: Safe To Dispose And UV Radiation Free Color Rendering Index(CRI): &gt;80, Light Output(Lumens): 1043, Compliable temperature:-4 to 104 Degress Fahrenheit (-20 to 40 Degree Celsius ) ETL listed and 3 Years Manufacturer Warranty