What is the lifespan of solar powered street lights?
Recently, some customers asked me how long solar powered street lights can be used, how long the life span, and so on. Now I would like to reply.
The life of solar powered street lights is determined by the accessories with the shortest life. The accessories of solar powered street lights are mainly composed of solar panels, controllers, storage batteries, light sources and lamp poles. Among them, the service life of solar panels is more than 20 years. After 20 years, solar panels only have a certain light decline (about more than 30%), but they can continue to be used. Then is the controller, so the general life in 8~10 years or so, specifically look at the inside of the electronic original and use environment; In the past, solar powered street lights generally use lead-acid colloidal batteries, which have a service life of about 3 years. Generally, lead-acid batteries that are approaching their service life may be very seriously aging, and their capacity can not even reach 10% of the base, basically unable to meet the lighting needs. And now the use of batteries are mostly lithium battery, lithium battery resistance to high and low temperature properties than lead acid colloid battery excellent, the number of cycles than lead acid colloid battery, depth discharge can reach more than 2000 times, so the service life of lithium battery can have more than 5 years; At present, solar powered street lights are all LED light sources, and a good LED light source can last more than 11 years. The final light pole can last more than 20 years if it is hot-dip galvanized and rust proof measures are taken.
To sum up, the main factor restricting the life of solar powered street lights is the battery, which is the first to be damaged during normal use. In this case, you don't need to worry, just replace the battery and solar powered street lights will work normally. At this time, I can recommend the universal maintenance lamp holder of Nander Solar. It has its own battery, plus the controller with MPPT, can adapt to various voltage solar panels, without special supporting, but also with light source, all accessories are highly integrated. Replacement is also very convenient, just connect the solar panel line after the universal maintenance lamp cap on the lamp arm can work normally.
So the average life of solar powered street lights is 5 to 8 years, but most of the accessories can be used normally, only need to replace the battery.
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