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Although solar street lights are known for their easy installation and maintenance-free features, they are not invincible. Over time, various issues may arise. When encountering these minor issues, there is no need to panic. The manufacturers of solar street lights have summarized some common problems for you.
Controller detection: The red light on the controller indicates it is charging, and a flashing light means the battery is full.
Controller yellow light: This indicates the battery is discharged and cannot illuminate correctly. If the battery wires are disconnected and then reconnected, the light will turn on. At this point, the controller detects that the battery capacity has increased due to a day of charging, not due to the float charging voltage.
Battery: Under normal conditions, the battery charges and discharges properly. However, if the voltage decreases rapidly after connecting the light, it indicates that the battery is damaged. Additionally, if water enters the waterproof casing, it may cause a short circuit due to positive and negative electrodes, resulting in unstable voltage, which may vary widely. If the voltage drops below 10V due to excessive discharge from water ingress, the battery can be used normally after a proper small current charge and discharge cycle. If it cannot be restored, it will need to be replaced.
Lights are illuminated during the day: This situation indicates that the solar panel is not charging the battery through the controller during the day, or that the components of the controller may have been damaged due to reversed polarity during connection.
Damaged wiring: Solar street lights use low-voltage wires, and each cable consists of multiple copper strands. If the copper strands get crushed during installation, it may not be visible on the surface, but the light will stop functioning shortly after installation.
LED light source: The light source works properly when the battery voltage is normal. If the light does not illuminate, connect the positive and negative terminals of the light directly to the positive and negative terminals of the battery for testing. If the light source illuminates, it indicates that the fixture is functioning correctly.
I hope the above summary of issues regarding the use of solar street lights can provide assistance to everyone.
