An LED Lamp or Light Emitting Diode Lamp, uses solid-state technology to illuminate, rather than a filament or gas. Unlike Incandescent or Compact Fluorescent Lamps (CFL), LED Lamps very small and consume very little energy. In most cases even the brightest individual LED does not equate to a standard-sized 100W Incandescent or CFL equivalent (~20W). Thus in an LED bulb usually clusters of 3-18 individual LEDs are used to simulate the equivalent in an Incandescent or CFL. Where this might seem like a great number to include in a lamp, each LED consumes barely more than 1/20th of a Watt (~49 mW or milliwatts)