The LED (Light Emitting Diode) technology has become indispensable in the field of stage and lighting installation, because the small light-emitting diodes has in contrast to conventional light sources many advantages. The LED is durable and compared to conventional bulbs two to three times more efficient because they convert more energy into light and less into heat. The musicians on stage can feel this advantage through not having such a hot stage lighting. Among the applications of LED technology are included: light shows, stage and of course discos. LED lights with red, green and blue LED groups are even capable of producing almost any colour from these basic colours - all without adding colour change mechanisms or colour filters.