Several important points in LED design and application


LEDs have unique advantages, but LEDs are a fragile semiconductor product, so we need to be careful when using LED products.

Should be operated with direct current

Some manufacturers use the "resistance-resistance and step-down" method to deliver power to LED products to reduce the cost of products that will directly affect them lives of LED products. (led bulbs, led downlight, led track light, led strip light)
Using a dedicated switched power supply for the power LED products does not affect the life of the product, but the product is relatively high.

Need to take antistatic measures

LED products must adopt certain antistatic measures during production and processing, such as the worktop should be grounded, workers should wear antistatic clothing, with antistatic ring and belt, anti-static gloves, etc., can be installed with anti-static ion air and also see to the humidity in the workshop is about 65%, to prevent the air from being too dry to create static electricity. Especially green LEDs are more susceptible to damage from static electricity.
Many static problems are caused by people's lack of ESD (electrostatic discharges) awareness since most ESD injuries occur outside of human emotions. Since the human body's perceived voltage for electrostatic discharge is about 3KV, many electronic components can be damaged at hundreds of volts or even tens of volts. Most often the electronics are damaged by ESD after there is no clear limit, components are mounted on PCB and then tested. As a result, many problems arise and analysis is quite difficult.

LED temperature

It is important to note that an increase in temperature will cause the internal resistance of the LED to be smaller. As the ambient temperature rises, the internal resistance of the LED light source decreases. If the power supply is stabilized, the LED will be caused.
Working current rises, when it exceeds its nominal work as current, it will affect the life of LED products, which will seriously cause "burn out" of the LED light source. Therefore, it is better to use a constant power source. Power supply to ensure that the operational current LED is not affected by the external temperature.

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