1.solar power generation; 2.environmental protection; 3.energy protection; 4.lithium battery Wattage251 - 350wVoltage48VPower SupplyLithium BatteryWheel Size26“MotorBrushlessCertificationNOFrame MaterialAluminumFoldableNoMax Speed<30km/hRange per Power31 - 60 kmPlace of OriginShandong, China (Mainland)Brand NameSANDEModel NumberSD-T-1 solar electric bicycle