Currently, there are two main methods for encapsulating solar cells: lamination and gluing. The lamination process can guarantee the service life of solar cells over 25 years. Although the glue was beautiful at the time, the life span of solar cells was only 1 to 2 years. Therefore, for low-power solar lawn lights below 1W, if there is no long life expectancy, epoxy resin encapsulation can be used. For solar lamps with a specified service life, laminated packaging is recommended. In addition, there is a silicone gel used to encapsulate solar cells with glue. It is said that the service life can reach 10 years.
2. There is a close relationship between the use time and the battery
The service life of solar garden lights is a problem that many people are more concerned about. How long the solar garden light can be used is closely related to many factors. Take the battery as an example. The quality of the battery directly affects the length of time that the garden light can be used.
3. Choose the battery capacity
Because the input energy of solar photovoltaic power generation system is extremely unstable, it generally needs to be equipped with a storage battery system to operate, and solar lamps are no exception. It must be equipped with a battery during operation. Generally, there are lead-acid batteries, nickel-cadmium batteries and nickel-hydrogen batteries. Their capacity selection directly affects the reliability and price of the system. The selection of battery capacity should generally follow the following principles: First, on the premise that it can meet the night lighting, the energy of the solar cell components during the day should be stored as much as possible, and at the same time, it should be able to store the electrical energy that can meet the lighting needs of successive cloudy and rainy days at night. The battery capacity is too small to meet the needs of night lighting, and the battery capacity is too large. On the one hand, the battery is always in a state of power loss, which affects the battery life and forms a waste at the same time.