led light-emitting diode is a diode forward conduction characteristics of a current when emit different colors of light. It is a kind of high-power led led, as opposed to low-power led, a higher power led single power, brightness, brighter, higher prices. Small power led rated current is 20mA, 20mA rated current is substantially higher than can be counted as high power. There are a few general power: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w and so on. The main units of brightness lm (lumens), brightness low-power units generally mcd. This two units can not conversion. Now emerging as a green, environmentally friendly, energy-saving light sources are widely used in car lights, flashlights, lamps and other places.
LED power was so called, is mainly aimed at small power LED is concerned, I summarize the current classification standards in three ways:
The first one is based on the power level can be divided into 0.5W, 1W, 3W, 5W, 10W .... 100W range, according to the total power package after molding differ in terms of product.
The second may be based on its packaging process divided into: large size epoxy resin, imitation piranha-type epoxy resin, aluminum plate (MCPCB) package, TO package, power type SMD package, MCPCB integrated package, etc.

The third can be divided into low light power and non-power low-light failure light products depending on their degree of decline.
Of course, since the high-power LED itself more parameters, depending on the parameters have different classification criteria, this is no longer the class said. LED high power LED packages still belong in one, is to make semiconductor lighting. Towards the general lighting the most important part.