LED street light technical requirements

LED street light technical requirements

The LED street light project is not only affected by the global environment, but also its industry specificity. LED street light power supply is the most important development of LED

1. Why should the LED street light driver be constant? The characteristics of LED lighting materials determine that it is affected by the environment, such as temperature changes, LED current increases, voltage increases, and LED current increases. Exceeding the rated current for a long time will greatly shorten the service life of the LED lamp. LED constant current is to ensure that its operating current value remains unchanged when environmental factors such as temperature and voltage change.

   
   

2. The working voltage of LED street light power supply The recommended working voltage of LED is 3.0-3.5V. After testing, most of them work at 3.2V, so it is more reasonable to calculate according to 3.2V. N lamp beads in series with total voltage = 3.2*N.

3. What is the most suitable working current for LED street lights? For example, the rated current of LEDs is 350 mA, and some factories are used to do it, and it is designed to be 350 mA. In fact, this work is very serious under the current heat, after several times For comparison tests, the design at 320mAh is ideal to try to reduce heat and allow more energy to be converted into visible light.

4. Wide voltage LED street lamp driver In order to make the LED street lamp power supply within a wide range of AC85-265V input voltage range, the series-parallel mode of the lamp panel LED is very important. Do not apply a wide voltage as much as possible, which can be divided into AC220V and AC110V as much as possible to ensure the reliability of power supply.

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