Simson Dynamo This Simson Dynamo has a durable plastic impeller for quiet and smooth running use, which converts the movement of the wheel into energy very efficiently. The left-hand dynamo has overvoltage protection. The dynamo has handy double connection strips at the bottom for connecting the front and rear lights. It is made of impact-resistant ABS and is splash and rainproof. Specifications: Color: black Dynamo material: ABS Impeller material: plastic Position: left Voltage: 6V / 3W