LED Lighting: “LEDs, or light-emitting diodes, are semiconductor devices that produce visible light when an electrical current is passed through them.” (http://www.energystar.gov/index.cfm?c=ligh) LED lighting is a type of Solid-State Lighting (SSL), which is extremely energy-efficient. When first developed, LEDs were limited to single-bulb use in applications such as instrument panels, electronics, penlights, and more recently, […]