What are the reasons why the led street light does not turn on?
Solar street lights generally use LED lights, but if the street lights are not lit, in addition to the quality of the bulb, it is more likely to be a problem with the connection and welding of the lamp socket. At this time, the LED lights that do not light should be replaced or the Check with the light on, and repair the problem found. What if the led street light does not turn on? It is recommended that you check the solar street light controller, the controller is the center of the solar street light.
1. The red light indicates that it is charging, and the flashing indicates that the power is overcharged. If it is a yellow light, it indicates that it is out of power and cannot be turned on normally. At this time, the voltage of the lithium battery of the street light needs to be checked. If the lithium battery is normal, then replace the new controller to see See if it is normal, if it is normal, it is absolutely sure that the controller is broken. If the light is not on, check whether the wiring is dropped.
2. Lithium batteries are also a link that is prone to failure. The lithium batteries used by many street light manufacturers are not waterproof, which leads to a short circuit of the positive and negative electrodes after the lithium battery enters the water, resulting in unstable voltage. When testing, carefully observe the change of the lithium battery voltage with the depth of discharge. If it cannot be used normally, it needs to be replaced with a new one.
3. If the fault of the controller is ruled out, the next step is to detect whether the solar panel can be charged. Usually, the situation that cannot be charged is mainly characterized by voltage and no current. At this time, it is necessary to check whether the joints of the battery board are welded well, and whether the aluminum foil on the battery board has current. If there is no current, it is basically concluded that the battery board has been scrapped. If there is current on the solar panel, pay attention to whether it is covered with snow and cannot be charged.
4. When finished, check whether the line is damaged or not. If the insulating layer is worn and the current is conducted through the lamp pole, it will cause a short circuit and the lamp will not light up. By the way, some led street lights are also on during the day and cannot be turned off. In this case, most of the controller components are burned out.
The above is a part of the detection and repair methods for the failure of the street light. It is recommended to let professional staff repair the street light, and it is recommended not to repair the street light without permission.
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