Street light involve lighting technology and are suitable for street lights. The street light purpose is to design a high-efficiency electronic energy-saving street lamp with long life, low power consumption, high power factor and small current harmonic content. The high-efficiency electronic energy-saving street lights comprises sequentially connected grid high-voltage discharge branches R1, C1, rectifier bridges D1-D4, power factor correction branches C2, D5, D6, high-intermediate...