Description: Any gas discharge lamp has a pair of electrodes, acting as cathode and anode. Both electrodes alternate when these devices run with alternating current. And here I would like to introduce you a Cold Cathode white light LED bulb. This MR16 light LED bulb is 100% brand new. There are 4 pcs of 1w high power LED within the lamp. And, the bright LED light is an ultra low power consumption device, thus it is also a power-saving lamp. In contrast to the other kinds of lamps, this white light LED bulb can save a lot of power for you everyday. The light housing is made of high quality aluminum material, which makes the white light LED bulb durable, anti-shock and shatter-resistant. Moreover, there are not any harmful elements like mercury or lead existing in the MR16 light LED bulb. There is no radiation produced when you use this white light LED bulb. Environmental friendly and reliable Performance makes this white light LED bulb a wonderful home appliance! Specifications: - LED Base Type: MR16 - Working Voltage : 12V DC or 12V AC - Beam angle: 30 degree - Power Consumption: 4x1Watt - Light Color: White - LED color temp: 6000 - 7000K - Number of LEDs: 4pcs - Luminous Flux : 400 LM - Lamp Cup Material: Made of Aluminum alloy Color: Mainly Silver Dimensions: 49 x 55mm (Dia. x H) Net Weight: 39g