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The Damage of Solar Road Stud Markers

There are various reasons for the damage of solar road stud markers, and the main damage modes are introduced below.

Solar road stud marker
First, battery dead. The first possibility of a failed battery is that the solar panel is damaged. Solar panel charging did not come in, while the LED light is still working. When the battery runs out, the LED will not light up any more. The second possibility is that the charging and discharging device is damaged. The charging and discharging device of solar road stud marker has the function of boosting and depressurizing. When working, sensitive components will be impacted by static electricity, which may cause damage for a long time, so that the components can not reach their original functions. 
Second, physical damage. Solar road stud marker are load limited. If the load limit is exceeded for a long time, the solar road stud marker will be damaged physically. The solar road stud marker will not be damaged by small vehicles and occasionally by large vehicles. However, if they are repeatedly rolled, the solar panel chips may be damaged, resulting in LED lights not being on.

Solar road stud marker
Third, water leakage. There are many kinds of shell materials for solar road stud marker. The first is to inlay the lens of solar road stud marker to the surface, which requires workers to operate carefully. The solar lens glue needs to be completely filled, otherwise it will seep. But even if there is no problem with the production, after years of exposure to harsh environment, the glue may fail and separate the shell from the internal structure. The second is to clip the reflector into the solar road stud marker, and then pour it with special glue. Such road stud marker, even if used for many years, will not seep water.
Fourth, it is not resistant to low temperature. Solar road stud marker use Ni MH batteries. The disadvantage of Ni MH battery is that it is not resistant to low temperature. When the temperature is below - 40 degrees Celsius, the battery will fail instantly. But if you use lithium batteries, it won't happen.