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Generally, it is rare for the light source of solar street lights to malfunction. However, due to the poor production quality of some solar street lights or the users opting for cheaper, lower-quality bulbs, malfunctions can occur.
So, how can we effectively repair the light source of solar street lights? What specific details should be paid special attention to? Below, I will provide a brief introduction.
When we find that the solar street light is completely off, we need to use a multimeter on the resistance setting or a button cell battery to connect it according to the positive and negative terminals. If the LED light does not turn on, it indicates that the LED bulb is damaged and needs to be replaced. However, if the LED light can be illuminated, it means the bulb is functioning normally.
If the solar street light is off, we can also use the cold solder joint detection method for better diagnosis. By heating the non-functioning light and using the multimeter on the resistance setting to connect the LED, if the LED light turns on but goes off as the lead temperature decreases, it suggests there is a cold solder joint issue. This assessment is mainly based on the principle of thermal expansion and contraction of metals.
The above two methods are commonly used for the maintenance of solar street lights. Is there a good method to better prevent LED chips from failing? In fact, there are several methods. For instance, workers must wear anti-static gear and utilize anti-static wristbands. It is important to ensure that the wristbands have proper grounding. Additionally, strict control over the manufacturing process and quality is essential to avoid the occurrence of cold soldering issues.
