For the waterproof and moisture-proof performance of solar street lamps, coastal users can best understand that the non waterproof controller may corrode the circuit board for about half a year. In order to facilitate maintenance, most customers place the controller on the base of the lamp pole.

However, the base sealing of many solar street lamp manufacturers is poor. When it rains, the rain will come in. In this way, the controller that is not completely waterproof is likely to be corroded due to the inflow of water. When the amount of rainwater is large, the controller circuit will be short circuited immediately. In addition, it should be noted that the joint should be wrapped with waterproof tape, because ordinary insulating tape can not protect the line from water. Temperature compensation function is easy to ignore, but it is a very important function.

The battery has unique negative temperature characteristics. The battery voltage is high at low temperature and low at high temperature. When charging, the controller will monitor the battery voltage in real time. In general, 12V batteries detect protection of about 14.5V to prevent overcharging from damaging the battery. If the controller is used in high temperature and low temperature environment without temperature compensation function, the voltage detected by the solar street lamp controller battery in real time will have a great error, which will directly lead to the serious consequences of insufficient charging in low temperature environment and overcharging in high temperature environment.