Solar LED traffic signal Specification Features1, Environmental with Solar Energy2, Energy-saving with Low- ... installation6, Maintenance Free with Lead-acid Battery.FunctionThe solar traffic signal are used for indicating the drivers the road condition by ... : 12V/7AH, 2-3 years3 Voltage: DC12V4 Continual runtime: 360h under rainy days5 Flicker Frequency: 42±2 times/min6 Material: Aluminum ...