What are the conditions related to the life of solar street lights?
In order to comply with the concept of energy saving and environmental protection, and to consider practical reasons such as the difficulty of installing municipal circuit lights in the area, solar street lights are installed in most areas. Solar street lights are also familiar to the common people for these reasons. However, the quality of solar street lights on the market is uneven. After installation in many areas, not only the phenomenon of 'lights on and off roads' appear, but also the service life of solar street lights is only one to two years, which is widely criticized by people. So what does the life of solar street light have to do with it?
Solar street lights are mainly composed of street light poles, solar batteries, controllers, LED street light lamp holders, and solar panels. The life of these components directly affects the life of solar street lights.
1. The normal service life of street light poles after hot-dip galvanizing is 15 years. In order to reduce the price of solar street lights, some poor manufacturers use low-wall thickness steel plates and cold galvanized steel. Such street light poles take 3 to 4 years. It will rust. In severe cases, there will be a dangerous phenomenon of street lamp pole breaking when encountering a big typhoon.
2. LED street light lamp holder The normal service life of LED street light lamp holder is 5 to 7 years. And our company uses Bridgelux LED chips, the lifespan can reach more than 50000H.
3. Solar panels Solar panels use high-efficiency polycrystalline silicon wafers with high conversion efficiency, and their service life can reach 20 years under normal conditions.
4. Solar street light controller The solar street light controller has a waterproof rating of at least IP65 and a service life of 5 to 6 years.
5. Solar storage battery Solar storage battery is an important factor that causes the short life of solar street lights. At present, lithium batteries are generally used in the market. In order to obtain higher benefits, many poor solar street lamp manufacturers will make 'articles' on lithium batteries: cutting corners, configuring false standards and using 3.2V lithium iron phosphate lithium batteries. 1. Configure the virtual standard Configure the virtual standard or cause the lithium battery to run under frequent load, which will increase the cycle times of the lithium battery and seriously affect the life of the solar street light.
2.3.2V Lithium iron phosphate lithium battery Most of these batteries on the market are eliminated by a domestic automobile battery factory, and are widely used by many solar street light manufacturers. This type of battery has a short cycle time and is not resistant to low temperatures. A large part of the solar street lamps that have problems use this type of battery.
The life of the solar street light is the life of these components. As long as any one of the components fails, the solar street light cannot be used normally. Among these components, the most important one is the solar battery. We have to use the normal 12V voltage solar battery, so that the service life can be much longer than two years and reach 5 to 6 years.