1.long life,high reliability and low lumens depreciation 2.high efficiency,energy saving,saving 30%-50%electricity Street led lamp advantage 1.led steet light use High power,high luminosity,energy saving up to above 80%.2.Long life of led street light span for over 50000 hours,which is 10 times more than thetraditional lights.3.LED street lighting is cold light source ,has no light depreciation, ...