1, it is best to use "pure" DC power supply

Some suppliers produce LED products through the "resistance and capacitance reduction" method to power LED, this method will affect the life of LED products. It is best to use a switching power supply, so that not only the "ripple coefficient" of the LED power supply is reduced, but also the voltage is more stable.

2. Do a good job of electrostatic protection

When processing and production, LED should take certain anti-static methods, such as: The workbench should be in contact with the ground, the workers should wear anti-static clothing, bring anti-static rings, and anti-static gloves should also be brought, the conditions are good, you can also install anti-static ion fans, during the period to ensure that the humidity of the workshop is about 65%, so that the air is too dry to produce static electricity, and other colors LED a green and blue easy to be damaged by static electricity. And the quality of LED is related to his anti-electricity ability, and the anti-static ability of good quality LED is better.

3, temperature will affect the internal resistance of the LED

LED rated current is about 20mA, when the temperature rises, its internal resistance will become smaller. If the method of voltage regulation is used for power supply, it will cause the LED current to rise, and when the current exceeds 20mA, the life of the LED will be affected, and the LED will burn out directly if the situation is serious. Therefore, it is best to choose a constant current source power supply, which can ensure that the current of the LED will not change because of changes in temperature.