Guangmai Technology is professional in making the 1W 3W Epistar High Power LED Chip 45mil White 6000K.
Some knowledge about the 1-3w high power led chip Epistar brand:
Compared with low-power LED lamp beads, high-power LED lamp beads have higher power, brighter brightness and higher price. The rated current of low-power LED lamp beads is usually 20mA, and the rated current higher than 20mA can basically be regarded as high-power.
Common power files are: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w, etc. The unit of brightness is lm (lumens), and the unit of low power is generally mcd (millicandela, 1cd=1000mcd), which is Luminous intensity I. The high-power lamp beads are mainly imitation lumen lamp beads, as shown in the figure below.
In the application process of high-power LED products and devices, heat dissipation, electrostatic protection, and welding have a great impact on their characteristics, and they need to be highly valued by application-side customers.
Heat dissipation
Due to the limitation of semiconductor light-emitting diode chip technology, the photoelectric conversion efficiency of LEDs needs to be improved, especially for high-power LEDs. Due to their high power, a large part of the electrical energy is converted into heat. (With the development of semiconductor technology, the photoelectric conversion efficiency Is gradually improving), which requires end customers to do a good job of heat dissipation when applying high-power LED products to ensure the normal operation of high-power LED products. WeChat public account: Shenzhen LED Network
1. Heat sink requirements
If the sealing requirements of the finished product are not high, it can directly convection with the outside air environment. It is recommended to use aluminum or copper heat sinks with fins.
2. Effective heat dissipation surface area
For 1W high-power LED white light (other colors are basically the same), it is recommended that the total effective heat dissipation surface area of the heat sink is ≥50-60c㎡;
For 3W products, it is recommended that the total effective heat dissipation surface area of the heat sink is ≥150c㎡;
Higher power depends on the situation and test results, and try to ensure that the temperature of the heat sink does not exceed 60°C.
3. Connection method
When connecting the high-power LED substrate and the heat sink, please ensure that the contact surface is flat and in good contact. In order to strengthen the combination of the two contact surfaces, it is recommended to apply thermal grease on the bottom of the LED substrate or on the surface of the heat sink (thermal conductivity of thermal grease ≥3.0W /mk), thermally conductive silicone grease should be applied evenly and in an appropriate amount, and then fixed with screws.
GMKJ LED is making different colors right now as below:
If you need any color in this list, you can contact with GMKJ directly.
Package Size:
Application
1-3w high power leds are mainly used as high bay light, street light, led food light and torch light.
About Guangmai
Datasheet:
For more details, please feel free to contact with Guangmai Tech directly.
You can download the technical datasheet English version of 1W 3W Epistar High Power LED Chip 45mil White 6000K from the head of this page.
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