For those who don't have street lights, the little friends who drive the car don't have much impact. After all, there are lights that can keep the lighting, but for others, it seems that everything is not so friendly. You need to know that the bicycle is through many reflective materials. To reflect other light sources to make others see, similar to the reflective barriers on both sides of the roadbed, as well as some special groups of overalls, police, security, sanitation, etc., if there is no street light It is difficult to be easily seen by others, and it is tantamount to increasing the risk factor of the night road. Outdoor lighting LED street lighting projects are affected by the global environment and their industry specificity.
1. Why should the outdoor lighting fixture LED street light driver be constant? The characteristics of LED lighting materials determine its environmental impact, such as temperature changes, LED current increases, voltage increases, and LED current increases. Long-term operation beyond the rated current will greatly shorten the life of the LED lamp. The constant current of the LED ensures that the operating current value does not change under the influence of environmental factors such as temperature and voltage.
2, LED street light power supply operating voltage The recommended operating voltage of the general LED is 3.0-3.5V, after testing, most of the work is at 3.2V, so it is reasonable to calculate according to 3.2V. N lamp beads are connected in series with the total voltage = 3.2 * N.
3. How much is the working current of the LED street lamp? For example, the rated current of the LED is 350 mAh, and some factories use it to design it as 350 mAh. In fact, this work is very serious under the current heat. After several comparisons. The test, designed for 320 mA, is ideal for trying to reduce heat and convert more energy into visible light.
4, wide voltage LED street light drive In order to make the outdoor lighting LED street light power supply in a wide range of AC85-265V input voltage range, then the light board LED series and parallel mode is very important. As far as possible, no wide voltage can be applied. It can be divided into AC220V and AC110V as much as possible to provide power supply reliability.