LED street lighting project, both by the global environment of the impact, but also its industry specificity. The LED street lamp power supply is precisely the most important LED development
1, LED street lamp driver why must constant it?
The characteristics of LED lighting materials determine its impact by the environment, such as temperature changes, LED current will increase, the voltage increases, LED current will increase. Long over the rated current work, will greatly shorten the LED lamp life. The LED constant current is in the temperature and voltage and other environmental factors change, to ensure that its working current value unchanged.
2, LED street lamp power working Voltage
General LED recommended operating voltage is 3.0-3.5V, tested, most of the work in 3.2V, so the calculation by 3.2V more reasonable. N lamp beads in series with the total voltage = 3.2 * N.
3, LED street lamp operating current how much is the most suitable
For example, the rated current of the LED 350 mA, and some factories used to do, the design 350 mA, in fact, this work under the current heat is very serious, after several comparative tests, designed to 320 mA is ideal The Try to reduce the amount of heat, so that more energy into visible light.
4, LED street lights driver with the wide voltage
To make LED street lamp power supply in the wide range of input voltage range AC85-265V, then the light board LED string parallel way is very important. As far as possible does not apply wide voltage, can be divided into AC220V, AC110V as much as possible classification, so as to ensure power supply reliability.
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