The difference between high power LED and low power LED

LED is a light-emitting diode, which is a type of diode. Its characteristic is that it emits light of different colors when the current is forward-conducted. High-power LED is another type of LED. Compared with low-power LED, high-power LED has higher power, brighter brightness and higher price. The rated current of low-power LED is 20mA. Basically, those with rated current higher than 20mA can be regarded as high-power. The general power numbers are: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w, etc. The main brightness unit is lm (lumen), and the low-power brightness unit is generally mcd. These two units cannot be converted. At present, as an emerging green, environmentally friendly and energy-saving light source, it is widely used in car lights, flashlights, lamps and other places.

The reason why LED high power is called this is mainly for low power LED. At present, I have summarized three classification standards:

The first type is divided into 0.5W, 1W, 3W, 5W, 10W...100W according to the power size, which varies according to the total power of the molded product after packaging.

The second type can be divided into: large-size epoxy resin packaging, piranha-like epoxy resin packaging, aluminum substrate (MCPCB) packaging, TO packaging, power SMD packaging, MCPCB integrated packaging, etc. according to its packaging process.

The third type can be divided into low light attenuation high-power products and non-low light attenuation high-power products according to their light attenuation levels.

Of course, since high-power LEDs have many parameters, there are different classification standards based on different parameters, which will not be described here. High-power LEDs are still a type of LED packaging product, and are the most important part of semiconductor lighting moving towards the field of general lighting.