Light Emitting Diode based Street Light System is provided with battery storage backup sufficient to operate the light for 10-11 hours daily. The Street Light System is controlled by a controller with automatic on/off time switch, which control the light from dusk till morning or other setting time. The Street Light System is based on light emitting diode and suitable for the illumination of streets, squares and cross roads. The Light Emitting Diode based Street Light System is environment friendly and independent from black-out in the normal electric supply.