LED street lamps are designed for the replacement of street lamps based on discharge lamps. To optimize the cooling air duct, the two sides of the lamp are not completely closed, and the holes are respectively formed to form an air duct, and the heat exchange between the left and right air channels is arranged, and a row of holes are arranged at the bottom of the lamp body to further improve the heat dissipation effect. Adopt to aluminum material to reach the general aluminum alloy difficult to achieve heat conduction effect.Great efficiency, high quality and perfect distribution of the light beam for outstanding working performance with MeanWell driver and CREE led chip.