What are the disadvantages of solar rain solar water heaters?

Nowadays, many families use this green and environmentally friendly solar water heater, which is mainly heated by solar energy to improve the water temperature, thereby providing hot water for each family in a timely manner. So what are the advantages of solar water heaters that everyone will have? Let's take a look together.
Jiangsu Sunrain Solar Energy Co., Ltd., one of the top ten brands of solar water heaters, a national protected trademark, a leading enterprise in China's solar photothermal industry, one of the world's largest suppliers of solar water heaters and hot water systems, and one of China's largest manufacturers and sales enterprises of solar water heaters
Disadvantages of solar rain solar water heaters:
1. Solar water heaters rely heavily on sunlight, and in overcast days or winter, the heating effect can deteriorate immediately, making them usable throughout the year. If electric heating is used, the power consumption is very high.
2. It takes a whole day of sunlight to heat the water. When the weather is good, hot water can only be guaranteed at night. During the day and night, hot water is rarely available, and it cannot guarantee 24-hour hot water supply for users, resulting in poor comfort.
3. The lighting panel of the solar water heater must be installed on the roof, which is not only bulky and bulky, but also affects the aesthetics of the building (more obvious in high-end residential areas), and can easily damage the roof waterproof layer.
4. If the solar water heater is installed at a high place, it must be ensured that it is within the protection range of the lightning rod, or lightning protection facilities must be installed for the solar water heater to avoid lightning accidents.
5. The installation procedure for solar water heaters is complex, and if installed improperly, it will not only pose a safety hazard, but also affect the aesthetics. Moreover, solar water heaters are generally installed on the roof of buildings, making daily maintenance difficult.
6. The hot water pipeline is more than ten meters long, and it wastes a lot of water every time it is used; Photoelectric complementation cannot actually be properly realized.