Why solar energy centralized power supply street lamp must be supplied by AC LED lamp?
You mean the power supply project, why the solar power is converted to AC, and then used for street lights?
1: DC transmission distance is limited, the pressure drop is very high2: DC voltage - protection switch, controller parts and other technologies immature or cost slightly higher3: DC wiring voltage is not very high, but the street lamp power is not small, the current will be very high, the cable cost
