... pannel: polycrystalline silicon,60WBattery:specilized for solar,80AH,12VController:time-control,over-current,over-voltage,temperature protection,humidity protection,12V/10ABattery ... %~80% energy than the sodium lamp with equal illumination. Switch Power Supply (SPS) makes DC and AC currents are ... up by light sensor, light off by time set. No need for manual control after the first set. Solar Street ...