How long is the general warranty period of the camera in the video surveillance system? How many years is the general service life?

It depends on the price you buy. Generally, some manufacturers have a two-year warranty, and the three-year warranty will increase the price step by step. Regular manufacturers are one year, and scattered small manufacturers and sellers are six months. Please ask before buying. As long as lightning strike and surge are excluded, the service life can be 2, 3 or even 5 or 6 years, but it also depends on what the manufacturer produces and what lens to use. No matter how good the manufacturer is, there will be some defective products, or it may close down in a few months.