The operation of LED solar street lamps involves a charging and discharging process. During the day, solar panels absorb sunlight and convert it into electrical energy stored in batteries. At night, the batteries supply power to the lamps, creating a continuous cycle. However, if there is a sudden failure of the LED solar street lamp, or if the lighting time decreases, how can we quickly determine the cause?
To find out the cause, we first need to determine whether the issue is a decrease in lighting time or a complete failure to illuminate. If the lighting time is shorter, it indicates a problem with the lamp’s configuration or that the solar panel’s generation capacity is insufficient. This could be due to an unreasonable configuration or a small size; it is also possible that a thick layer of dust has accumulated on the solar panel. This situation is common in riverside areas. If the lighting time is short during winter, or on consecutive days of overcast weather, simply cleaning the solar panel can resolve the issue. Regular maintenance based on the level of dirt accumulation is advisable.
Next, regarding the issue of not lighting up at all, this is often due to a faulty controller or battery. The chances of the LED lamp head being damaged are relatively low, as are those of the solar panel. To determine if the controller is the problem, we can use a testing method: measure the voltage of the solar panel and the battery with a multimeter. During sunny days, if the solar panel’s voltage is above 12V, it indicates the panel is functioning properly. If the battery voltage is also above 10V, the battery is normal as well. In this case, we can consider replacing the controller. If the lamp lights up after one to two days, it confirms the controller was the issue. Generally, if both the solar panel and battery are functioning well, the likelihood of them failing to light is low. However, if we find the solar panel’s voltage is below 10V during the day, we need to check the connections of the solar panel’s wires. If the wiring is intact and the panel still shows low voltage, it could indicate a problem with the solar panel, although this is rare. Most issues are related to the battery, particularly when its voltage is below 10V. This scenario typically arises when the controller malfunctions, leading to battery discharge and an inability to charge quickly, or due to the battery’s poor quality, resulting in excessive internal resistance that prevents normal charging and discharging.
Bitpott specializes in the research, development, production, and sales of outdoor lighting fixtures. If you want to learn about LED solar street lamp prices or purchase solar street lamps, please contact our online customer service. We welcome inquiries and orders.
