The basic standards for LED fluorescent light
LED power supply for LED fluorescent lamp is a very important part, if improper selections, LED fluorescent do not play his proper performance, or even they may not work. Here I made some LED fluorescent lighting small suggestion, just for your information.
1, why it must be constant current for LED fluorescent lamp power supply?
The characteristics of the semiconductor LED influenced by the environment, such as temperature, LED's current will increase; voltage increases, and the LED current also increases. Long-term over-load current work will greatly shorten the LED life. The LED constant current is to ensure constant operating current under environmental factors such as temperature and voltage changes.
2, How to get matched with light board for LED fluorescent lamp power supply?
Some customers design the light board first, then to find the power, they will find it difficult to have a suitable power supply, It is either too much current, the voltage is too small (eg I> 350mA, V <40V); or the current is too small, the voltage is too high (eg I < 40mA, V> 180V), the result is a severe fever, low efficiency, or the input voltage range is not enough. In fact, selecting an excellent string and the increase in the voltage and current of each LED is the same; the effect of power is able to play the best performance. The best way is to communicate with power supply manufacturers, and be tailored.
3, how much is the most appropriate for LED fluorescent lamp power supply operating current?
General LED rated current is 20 mA, and some plants design 20 mA, in fact, working under this current fever is very serious, after numerous comparison test, designed to be 17 to 19 mA is relatively ideal and the recommended design is 18 mA.
4, how much working voltage for LED fluorescent lamp power supply?
General LED recommended operating voltage is 3.0-3.5V. Through tested, most of the work is at 3.125V, so 3.125V is reasonable formula. The M series LED total voltage = 3.125 * M