How Does it Work?
LED lights use a different technology than previous lighting technologies. Instead of using lamps and ballasts, they use light-emitting-diodes and drivers to create light. The light-emitting diodes are manufactured in a process that is similar to production computer chips. Instead of processing information, they give off light. They require a power supply, called a driver, to regulate power going through the LEDs. LED power supplies are different than traditional ballasts. They control the current electronically. Because of this, they typically are multi-voltage. Drivers have a single pair of input wires that automatically adjust to the installation's line voltage. LED light fixtures often feature optics to control the light. This can be accomplished through lenses, reflectors, or a combination of the two. Both option have advantages for specific situations.