Light-emitting diodes (LEDs) are solid-state devices that use semiconductors and electroluminescence to create light. In short, this is the process of a material emitting light when an electric current is passed through it.

Essentially, LEDs convert electric energy directly into light, which differs from traditional incandescent lighting, which uses heat energy to generate light, which typically result in a significant waste of energy through heat loss. In comparison, LED technology is often referred to as ‘cold light technology’, due to the lower heat output from LEDs, and the fact they don’t waste energy in the form of non-light producing heat.

In the past, visible-light LEDs were of low intensity and limited to red. However, LEDs now cover the entire light spectrum, including the colors red, orange, yellow, green, blue, and white. As a result, they can now be used for many different purposes, including display technology, offering exceptionally accurate color and stand-out brightness, even in outdoor settings.