Alternagy 4W LED Downlight. A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it. The output from an LED can range from red (at a wavelength of approximately 700 nanometers) to blue-violet (about 400 nanometers). Some LEDs emit infrared (IR) energy (830 nanometers or longer); such a device is known as an ifrared-emmiting diode (IRED). Long-lasting, LED bulbs last up to 10 times as long as compact fluorescents, and far longer than typical incandescent bulbs.
White & Warm White 310 Lumens
MR16 12V DC / 220V AC