Plug-in WiFi cameras consume about 25 degrees of electricity per year. Assuming that the size of this solar panel is 20*20cm, the electricity generated in a year is between 5-10 degrees, which means that the whole set of equipment still mainly depends on external power supply. Assuming that this solar panel is sold for 150 yuan as an independent accessory, it will take 27 years to return to its cost as a user at the fastest and more than 50 years to return to its cost as the slowest. If the equipment failure during this period results in maintenance costs, the return time may be extended to your grandson's generation. -- summary: this equipment ancestral best!

What are those under the solar panel for? It's not very good to drive them in front.

Environmental protection

so powerful

Solar energy's