LED light bulb is an electric light that produces light using
light-emitting diodes (LEDs). LED lamps are significantly more
energy-efficient than equivalent incandescent lamps and can be
significantly more efficient than most fluorescent lamps. The most
efficient commercially available LED lamps have efficiencies of **0
lumens per watt (Lm/W). Commercial LED lamps have a lifespan many
times longer than incandescent lamps
