ChiChinLighting 10-Pack GU10 4W LED Reflector Bulb Spotlight LED Recessed Light Bulb 290lm Cool White Pure Daylight White 6000K 45 Degree Lighting Beam Angle This GU10 LED reflector light can replace 30W halogen bulb by 4W LED bulb,can save over 85% energy; Beam angle is 45 degree,Non-dimmable,290lm in cool white 6000K; Powered by Samsung LED chips to guarantee reliability,quality,brightness and warranty; Please only purchase legit ChiChinLighting marked products for quality and warranty; Please make sure you choose correct bulbs with correct cover and temperature.