<p>LEDs - the abbreviation stands for light emitting diodes - are electronic semiconductor devices, which emit under voltage lighting in the colors red, green, yellow or blue. With the help of an additional internal luminescent layer blue glowing LEDs can generate white light. The advantages of LEDs are long life, low maintenance, free of IR &amp; UV light, low energy consumption, color stability and insensitivity to vibrations. LEDs are available in different designs. LEDs were first used mainly for orientation lights. Increasingly, they produce outdoors and indoors color dynamic light on the principle of RGB color mixing. Many lights already work with LED's such as desktop lights and street lights. So it will not take long that LEDs with white light will conquer the general lighting application. LEDs operate at low voltage. In general multiple diodes form a module. For LED light in conventional lamps, the lighting industry provides RGB LED modules, which are housed in a light bulb with E27 screw base and form. They produce in "normal" residential lighting either white light for general and task lighting as well as colored mood light in red, green and blue, or as a color change.</p>