Power supply system for controlling LED street lamps in centralized way

The utility model relates to a power supply system for controlling LED street lamps in a centralized way, comprising more than one LED street lamp and an independent power cabinet which is internally provided with an LED power supply; and the LED power supply can be used for supplying power for each LED street lamp by a set of independent power line. Normal temperature environment is taken as the work environment temperature of the power supply so as to solve the problem of high temperature rise when the power supply is installed on a light fitting, so that the service life of the power supply is greatly prolonged, and the reliability of the power supply is greatly improved. The utility model conveniently solves the problems of centralized water prevention and lightning protection in a centralized control way. By adopting the power supply way of high voltage constant current, the power supply system realizes to drive the LED street lamps from a long distance, so that the line loss is reduced. Simultaneously,