An LED lamp is a type of solid state lighting (SSL) that uses light-emitting diodes (LEDs) as the source of light, rather than electrical filaments or gas.
LED lamp (also called LED bars or Illuminators) are usually clusters of LEDs in a suitable housing. They come in different shapes, including the standard light bulb shape with a large E27 Edison screw and MR16 shape with a bi-pin base. This includes low voltage (typically 12 V halogen-like) varieties ...