What is the reason why the external power supply of solar street lights 12 is not lit?

Solar street light is a lighting device that uses solar energy to generate electricity, which converts solar energy into electricity through solar panels, and then stores it in batteries for street lights. However, sometimes solar street lights may not light up when connected to 12V power supply, and the following will be analyzed from several possible reasons.

First of all, it can be caused by damaged solar panels or poor wiring. Solar panels are the core components of solar street lights, and if the panels are damaged or poorly wired, they cannot convert solar energy into electricity for street lights. At this time, you can check the battery plate for obvious damage, such as cracks, breakage, etc., and if so, the battery plate needs to be replaced.

At the same time, it is also necessary to check whether the wiring of the battery board is firm, whether there is loose or poor contact, and if so, it needs to be rewired.

Secondly, it may be caused by a damaged battery. The battery is the place where the electricity converted from the sun is stored, and if the battery is damaged, it cannot be used for street lights. At this point, you can determine if the battery is damaged by checking the voltage of the battery, and if the voltage is lower than the normal range, the battery needs to be replaced.

In addition, it may be caused by a malfunction of the controller. The controller is an important part of the solar street light, which is responsible for controlling the charging and discharging of the solar panels, as well as controlling the switch of the light fixture. If the controller fails, it won't work properly, causing the street lights to not light up.

At this time, you can judge whether the controller is faulty by checking whether the indicator light of the controller is normal, and if the indicator light is not on, you need to replace the controller.

Finally, it may be caused by a faulty lamp. The lamp is the lighting part of the solar street lamp, if the lamp is damaged or the bulb burns out, it will not be able to emit light normally. At this time, you can check whether the lamp is obviously damaged, such as broken lampshade, blackened bulb, etc., and if so, the lamp or bulb needs to be replaced.

To sum up, the solar street light does not light up when connected to the 12V power supply, which may be caused by damage to the solar panel or poor wiring, battery damage, controller failure or lamp failure. When troubleshooting, these parts can be checked one by one, find out the problem, and repair or replace the corresponding parts in time to ensure that the solar street lights work properly.

It means that this light is not powered by a 12V power supply.

Mainly damaged by the light source; damage to solar panels; The positive and negative poles of the solar panel are reversed; Constant current source damage; The controller is set incorrectly; The battery cannot work normally due to the reverse connection of the positive and negative electrodes of the battery, poor contact, expiration of service life, and damage to the battery; The hardware of the solar street light system is damaged due to aging or disconnected lines.

There are several main reasons why solar street lights do not light up:

The light source is damaged. Due to natural or man-made reasons, the light source is damaged, resulting in the solar street light system can not work, sometimes on, sometimes does not light, flickering, etc.

Solution:Overhaul or replace the light source.

damage to solar panels;

The solar panel does not connect any load in the sun, and do not link the controller, directly pull out the wire of the solar panel, and connect it to the multimeter to test its voltage, because your system is a 12v system, so the voltage of the solar panel will definitely be higher than 12v under normal circumstances, and the domestic board of this system will generally use a solar panel with a working voltage of 18v, so its open circuit voltage will be above 18v (experience should be about 18-21v).

The solar street light system does not work or does not work enough hours.

Solution:Replace the solar panels.

The positive and negative poles of the solar panel are reversed;

The solar street light system will only turn on once after installation, and when the battery runs out, the solar street light will never turn on again.

Solution:Swap the positive and negative poles of the solar panel.

Constant current source damage;

The solar street light system does not work, and the LED lights do not light or flash.

Solution:Overhaul the constant current source or directly replace the constant current source.

The controller is set incorrectly;

The solar street light system does not work properly, the LED lights are not on when they are on, they are not bright for enough time, they are not on during the day or at night, or they are always on.

Solution:Reset the controller and replace it directly.

The positive and negative poles of the battery are reversed, the contact is poor, the service life expires, the battery is damaged, etc., so that the battery can not work normally, and the voltage is too low.

The solar street light system can not work normally, the LED lights are not lit, the time is not enough, the brightness is not enough, and the time is not on.

Solution:Reconnect the battery, replace the battery, replace the battery's terminals, repair the battery, or replace the battery directly.

The line is aging or the line is disconnected.

The solar street light system is not working properly, and the LEDs do not light up or flicker.

Solution:Reconnect the wires or replace the wires.

Man-made hardware damage to the solar street light system.

The solar street light system is not working properly.

Solution:Hardware repair or replacement of damaged hardware.

Clause.

First, the inspection of the solar street lamp controller, the DU controller is the core of the solar street lamp. The red light indicates that the DAO is charging the internal power, flashing means that the power is full, if it is a yellow light, it means that the power is lost, and the light cannot be turned on normally, at this time, it is necessary to detect the battery voltage of the solar street lamp, if the battery is normal, then replace the new controller to see if it is normal, if it is normal, it is basically determined that the controller is broken. If the light is not on, detect whether the wiring has fallen off.

Clause. Second, if the controller fault is ruled out, the next step is to detect whether the solar panel can be charged, usually the situation that can not be charged is mainly manifested as there is voltage and no current. At this time, it is necessary to check whether the battery board joints are welded well, and whether there is current in the aluminum foil on the battery board. If there is current on the solar panel, also pay attention to whether there is snow cover that cannot be charged.

Clause. Third, the battery is also a link that is prone to failure. The batteries used by many manufacturers are not waterproof, which leads to a short circuit between the positive and negative electrodes after the battery enters the water, resulting in unstable voltage. During the test, carefully observe the change of battery voltage with the depth of discharge, and replace it with a new one if it cannot be used normally.

Clause. Fourth, finally check whether the line is damaged. If the insulation 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 solar street lights are also lit during the day and cannot be turned off.

In this case, the controller components are burned out.

First of all, the LED is wired directly at the controller to store electricity.

The pool is not lit up, and if the LED is not lit up. If it is on, the voltage of the inner battery of the test street lamp (which can also be tested in the first step) is normal or not, and the battery voltage is normal, that is, there is a problem with the controller. That is, to find a new part to replace it separately and determine which part is damaged.

Sunlight doesn't work, batteries don't work, battery panels don't work.

The battery is renewed, and it still doesn't light up, and it may be the reason.

There can be a variety of reasons why solar street lights don't light up, and here are some common reasons and solutions::

1.Solar panel failure: The panels of solar street lights are a key component in converting solar energy into electricity. If the battery plate is damaged or aged, it will not charge properly, causing the street lights to not light up. The workaround is to replace the battery plate.

2.Insufficient battery capacity: The battery capacity of a solar street light determines its ability to store electrical energy. If the battery capacity is insufficient, it cannot provide enough power for the street lights at night, resulting in the street lights not lighting up. The workaround is to replace the battery with a larger capacity.

3.Controller failure: The controller of the solar street light is responsible for controlling the charging and discharging process, if the controller fails, it will not work properly, resulting in the street light not lighting up. The workaround is to replace the controller.

4.Luminaire failure: The luminaire of solar street lights is a key component in providing lighting. If the light fixture is damaged or the bulb burns out, it will not be able to emit light properly, resulting in the street light not lighting up. The solution is to replace the light fixture or bulb.

5.Solar street lights surrounding environmental problems: Solar street lights need sufficient sunlight to work properly, if there are tall buildings or trees around to block the sunlight, it will affect the absorption and conversion of light energy, resulting in street lights not lit.

The solution is to adjust the position of the street lights or clear the surrounding obstructions.

6.Poor weather conditions: In rainy weather or cloudy days in a row, solar street lights cannot get enough sunlight to charge, resulting in street lights not lighting up. The workaround is to increase the battery capacity or use backup power.

In conclusion, there may be many reasons why solar street lights do not light up, and it is necessary to carefully check and troubleshoot the fault point, and then take corresponding solutions. At the same time, regular maintenance and maintenance of solar street lights is also an important measure to ensure their normal operation.

If there is no problem with the installation site, we need to consider whether there is a problem with the LED light source. Generally, if the street lamp is partly bright and partly not lit, we can preliminarily rule out the problem with the bulb of the street lamp, and we should be confident to see if there is a problem at the interface of the street lamp, and if there is a problem, then we must overhaul it as soon as possible.

If the solar street light does not light up, you need to check whether the lamp beads are burned, the battery is dead or the wiring is a problem.

The reason why the solar street light is not lit may be because there is a problem with the controller of the solar street lamp, the controller of the solar street lamp is the New Year of the solar street lamp, the red light of the controller indicates that the battery of the solar street lamp is storing electricity, and the flashing means that the storage is completed, if it has been a yellow light, it means that the battery of the solar street lamp is now in the case of power loss, if the light cannot be turned on normally, then we have to detect whether there is any problem with the battery voltage of the solar street lamp, If there is nothing abnormal in the voltage, then we should consider whether the solar controller has been damaged and needs to be replaced.

1. The controller of the solar street lamp is connected incorrectly.

For the lighting of solar street lights, it is generally controlled by the controller, if the solar street lights are not lit when they are on, the time of light is relatively short, they are bright during the day, they are not lit at night or they are always on, this problem is more obvious because there is a problem with the controller, and the answer is to reconnect the controller. If the solar street light controller does not have any indicator light on, the surface controller is faulty, and the corresponding controller should be purchased again.

2. There is a problem with the battery. For example, the positive and negative poles are reversed, the contact is poor, the service life expires, and the battery is damaged, resulting in the solar street lamp not working, and the voltage is relatively low.

Check whether the positive and negative poles of the battery are reversed, charge the battery with your own power supply, test the voltage normally after the 12V battery is fully charged, and then connect the battery directly to the load, test the voltage with a multimeter, and check the change of voltage. If the voltage decreases, the battery is normal. The solar street light system does not work normally, the LED light is not lit, and the time to light is not enough, the solution:

Reconnect the battery, replace the battery, and replace the terminal of the battery. Or simply replace the battery.

3. The line is aging or disconnected.

In this case, the circuit should be carefully checked, if the solar street light system is not working properly, the solar controller LED will not light up or flash. Reconnect the wires.

4. Damage to the components of the solar street light system (such as lamp holders, or solar panels).

If the parts are damaged, they should be repaired or replaced with new ones in time.

For solar street lights, if there is a failure, it will not be able to provide convenient lighting services for people, and the impact is great, so if there is a failure, it is necessary to troubleshoot the problem in time, and then solve it quickly. Hebei Changyuan Lighting has a deep understanding of all the details of solar street lamps to ensure that solar street lamps provide normal lighting services.

Hello, I know the co-mentor Xiaoyu, and I'm happy to answer for you. The solution to the high energy light not lighting in the early sun attack is as follows: 1. Detect the solar street light controller.

Red represents charging, flashing represents full power, yellow represents insufficient power, can not be used normally, then you need to test the battery voltage of the solar street light, if the battery is normal, replace the new controller, if it is normal, it is basically determined that the controller is broken. If the light is not on, then check if the wire is falling off. 2. If the controller is troubleshooting, the next step is to check whether the solar panel can be charged, which generally cannot be charged, and generally appears in the form of voltage and no current.

At this time, it is necessary to check whether the battery board is connected well, whether there is current in the aluminum foil on the battery board, if not, it can basically be judged that the battery board has been damaged. If there is current above the battery board, also be careful that it is covered by snow and cannot be recharged. 3. The battery is also a link that is prone to failure.

The batteries used by many manufacturers are not waterproof, and once in the water, the positive and negative electrodes of the battery will be short-circuited, causing voltage instability. During the test, it is necessary to carefully observe the change of the battery opening voltage with the depth of discharge, and if it cannot work normally, it should be replaced in time. 4. Finally, check whether the line is damaged.

If the insulation is worn out, the current is transmitted through the pole, which will cause a short circuit in the lamp, causing the bulb to not work properly. I hope my answer is helpful to you. Have a great day.