LED street lights provide lighting and security for people to travel at night. LED street lamp manufacturer is a solid cold light source, which has the characteristics of environmental protection, pollution-free, low power consumption, high luminous efficiency, long life, etc. Therefore, LED street lamp will become the choice of road lighting energy-saving transformation. LED street lamp is an efficient solid state light source based on semiconductor PN junction, which can emit light with weak electrical energy. Under a certain forward bias voltage and injection current, holes injected into the P area and electrons injected into the N area diffuse to the active area and emit photons after radiation recombination, directly converting electrical energy into light energy. The government really serves the people, and the people are very satisfied. LED street lamp is an efficient solid state light source based on semiconductor PN junction, which can emit light with weak electrical energy. Under a certain forward bias voltage and injection current, holes injected into the P area and electrons injected into the N area diffuse to the active area and emit photons after radiation recombination, directly converting electrical energy into light energy. But after a while, I found that the lights at night were not as bright as usual, so I quickly reported this situation to the relevant responsible person, who quickly contacted the LED street lamp manufacturer. The manufacturer replied that the lights could not be turned on after dark due to the following reasons.

1、 Voltage

The controller shows that the battery is under pressure and cannot be illuminated after dark, but the battery voltage has exceeded this point under the pressure value, indicating that the battery has been charged. In the 12v system, the down voltage protection value is about 11.1v (the default value of the controller). When the battery drops to this voltage point, the controller will turn off the power supply, stop discharging, protect the battery but release it.

reason

The solar panel charges the battery in the daytime, and charges the voltage to 12V (the default value of the controller) before continuing to discharge, to prevent the battery from being damaged by deep discharge for a long time. Then, after the battery is under voltage, if the controller is not restarted and 11.1 or 12V is under voltage, you must wait for the battery to recharge to 12V before continuing to discharge.

resolvent

It is sufficient to charge the battery voltage to 12V or higher using solar panels or DC chargers.

2、 Controller

If the LED street lamp has been installed and can be turned on normally for a period of time, the controller will fail. The controller is damaged because the system is subject to strong electric shock, such as direct lightning strike or short circuit, or the electronic components inside the controller may be damaged.

resolvent

Replace the controller, test the controller, and check the response of the indicator. If both indicators are not on, the controller will be damaged and must be replaced.

3、 LED light source is driven by DC power supply.

The indicator lamp of the detection controller shows normal discharge, and the battery voltage is sufficient, that is, the lamp does not light up. At this time, the positive and negative poles of the lamp should be directly connected to the positive and negative poles of the battery. If it cannot be discharged, the DC power supply of the LED light source will be damaged. It needs to be replaced. Now the LED light source DC power driver is integrated with the controller in the aluminum box. Installation and maintenance are simpler and more convenient. If a component is damaged, it can be replaced directly.

When customers encounter problems, they first think of complaining about LED street lamp manufacturers. In fact, if you buy products from regular manufacturers, don't worry about quality problems. The main reasons for these problems are environmental factors and improper use. Just contacted the LED street lamp manufacturer to solve the problem in a timely manner. These are just examples of how to solve common problems. If you have other problems, you can directly contact the LED street lamp manufacturer.