Product Specs Light source: high power LED, 5*1W Lamp type: MR16 ( diam 2" / abt 50mm ) Lamp base: G5.3 ( GU10, E27 customizable ) Input voltage: DC12V ( AC90 ~ 265V 50/60Hz ) Power: 5W Luminous color: warm white, cool white or customized Color temperature: 2,700K ~ 6,500K Luminous flux: not less than 300LM Beam angle: 45° Life time: more than 30,000 hours Dimension: D50 x H73mm ( GU10 ) Material: aluminum body, PMMA lens ( transparent or frosted optional ) Application: indoor lighting Dimmer feature is optional ( AC110V / AC220V ) Product Features Green light source, no ultraviolet radiation. Healthy light source, soft light, no glare, no flicker, no irritation to eyes. Eco friendly light source, no mercury and other harmful substances used. High-performance high power LED used, high luminous efficiency. Constant-current driving power source used, strong stability. Favorable performances on both illumination and heat dissipation. Low energy consumption, the electricity saving rate up to 60%-80% comparing to conventional lamps. Long life time, 3-6 times more than conventional lamps. Fashion style and rational product structure.