How to choose LED drive power
The service life of the LED drive power supply should be compatible with the service life of the LED, and must meet the requirements of installation rules and electromagnetic compatibility. The power supply structure should be waterproof and moisture-proof, and the shell should be sun-resistant. It is best to add LEDs in the constant current output to prevent the temperature of the negative feedback LED from being too high.
Since LED is an energy-saving product, the efficiency requirements of the driving power supply will be relatively high. The structure of the power supply installed in the luminaire is particularly important. The LED luminous efficiency will increase and decrease the LED temperature, so the problem of LED heat dissipation is very important. If the power supply efficiency is higher, the power consumption is smaller, and the heat in the lamp is smaller, thereby reducing the temperature of the lamp and delaying the light decay of the LED is beneficial.
Driving mode: The first type: the constant voltage source supplies multiple constant current sources, and each constant current source supplies power to each constant current source LED respectively. Advantages: Flexible combination, if there is one LED fault, it will not affect the normal operation of other faulty LEDs. Disadvantage: The cost will be slightly higher.
The second is the constant current direct power supply, so that the direct power supply LED runs in series or in parallel. Pros: Slightly lower cost. Disadvantages: poor flexibility, if there is an LED failure along the way, it must be solved first, without affecting other problems LED operation problems.
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