Most everyone is familiar with Light-Emitting-Diode (LEDs) from their use as indicator lights and numeric dis-plays on consumer electronic devices and message boards. With improvements in LED materials and production, brighter, more efficient and more colorful LED’s are now available which have moved the technology to a wide range of lighting applications.

LED’s are solid-state semiconductor devices that convert electronic energy directly into light. LED’s produce “cold” light which is very efficient because most the energy radiates in the visible spectrum. Incandescent, and to a lesser extent fluorescent, lamps radiate energy in the non-visible spectrum creating heat as well as light.

By combining RGB (Red, Green, Blue) LED’s, it is possible to create an entire spectrum of colors as well as white light - this is known as the “additive properties of light”.

Color mixing is achieved by varying the voltages to each of the RGB color arrays. The controller for this color mixing may be either an external unit or it may be combined on or in the lighting unit itself.