User:Inge Hoonte/dynamo

Dynamo on tire produces 3W
If you bike 20km/hr, a quarter of your output goes to the lighting. So with a medium output, 50W, 12W goes to lights. The dynamo handles about 0,5A at 6V, so 3W output. In parallel, 400mA goes to front light, 100mA to back light. You can also use the dynamo to charge a phone :)