Key features of 5w mr16 LED spot light:5w LED bulb with compact size;High quality Edison or Cree LEDs as light source;MR16 base;Aluminum alloy housing and professional optics lens;Dimmable and compatible with 12V low voltage dimmers;Up to 280 lumens;80% energy savings compared with incandescent and halogen bulbs;Solid state lighting, high shock resistance;Environment friendly, no mercury and lead, non-flickering, no light pollution;Designed to last over 35,000 hours;Technical Specifications:Lighting source: Cree or Edison high power LEDsMeasurement: D2.0*H2.1inch(D50*H54mm)Light output: up to 280 lumensCRI: 82 TypicalCCT: 3000-3250K(ww), 5650-6300K(w) TypicalInput voltage: 12v dc/acLuminous efficacy: 56lm per wattPower factor: 0.86Power consumption: 5WFittings: MR16Lifetime: 35,000 hrsBeam angle: 25/45/60°Dimming capability: on most common dimmersHeat sink: Aluminum alloy housingIP Rating (Working environment): Indoor use, applicable for dry environmentOperating environmental temperature: -10°C to +40°C (+14°F to +104°F)Storage temperature range: -40°C to +85°C (-40°F to +185°F)Humidity (non-condensing): 5% - 95% RH