Actually, few people know that there is a parameter for solar street lights called the number of rainy days, which refers to the number of days that solar street lights can work normally without receiving solar energy supplementation on consecutive rainy days. Based on the parameter mentioned by the editor, everyone can determine that solar street lights can work normally in rainy days.
In general, the default rainy days for most manufacturers' solar street lights are three days, while the rainy days for integrated solar street lights can be longer, ranging from five days to seven days. That is to say, within the specified number of days, even if solar street lights cannot supplement solar energy, they can still work normally. However, once this number of days is exceeded, solar street lights will no longer be able to function properly.
The reason why solar street lights can continue to work in rainy and cloudy days is that there is a portion of stored energy in the battery. Without solar energy conversion, street lights can continue to work for a period of time. However, when the originally stored energy is exhausted but there is no solar energy to replenish it, solar street lights will stop working.
The photovoltaic modules and batteries of solar street lights determine the number of rainy days, so these two parameters are important reference factors for choosing solar street lights. If the weather in your area is relatively humid and there are many rainy days, you should choose solar street lights with more rainy days appropriately.
So, when choosing solar street lights, it is necessary to consider the local climate conditions. If there are many continuous rainy days, then choose solar street lights that support more rainy days.