As a new energy system, solar street light it in cost savings and provide stability of the system is also play a role in lighting, solar street light is a one-time investment, is different from common street lamp, solar street light is no maintenance costs, and from electricity, it USES will pay back your investment in three years in this period, the rate of return is very high. If installed ordinary street lamp in the road, is likely to cost is a very high number. First of all, the use of ordinary street lamp is uninterrupted lines to it regularly and other configuration for maintenance or replacement, and ordinary street lamp installation terrain and wiring requirements if is complex, the interest is artificial and auxiliary data according to the situation seem to be very high. Solar street light has a benefit is that it is in the work has no fixed high electricity cost, also don't have to worry about it is to maintain the interest needs increasing year by year, is the initial investment amount to it is ok, overall solar street light price is very affordable.