LED or light emitting diodes are the next generation of light sources available for everyone.
Led`s are the thing if you want to conserve electricity and use a light source witch has a life span of over ten times that of a normal light bulb.
A LED is usually a small area light source, often with extra optics added that shapes its light pattern. LEDs are often used as small indicator lights on electronic devices and increasingly in higher power applications such as flashlights and area lighting.


The color of the emitted light depends on the composition and condition of the semi conducting material used, and can be infrared, visible, or ultraviolet. LEDs can also be used as a regular household light sources. Besides lighting, interesting applications include sterilization of water and disinfection of devices.
Most LEDs are made in the very common 5 mm T1-3/4 and 3 mm T1 packages, but with higher power, it has become increasingly necessary to get rid of the heat, so the packages have become bigger and better adapted for heat dissipation. Packages for high power LED`s bear little resemblance to normal LEDs. And due to high heat emissions they are not as easily used as normal diodes.