Aluminum housing, silver 6 V / 3 W, 4 terminal connections, optimal performance at low revolutions, with integrated voltage regulator Robust, simple & safe The "8201" dynamo from AXA looks robust thanks to its aluminum housing. This has made it a favorite for years. Equipped with a steel bearing and a steel wheel, this dynamo can withstand shocks without problems. Thanks to the practical push-in connections, the "8201" is easy to connect. There are no loose parts that you can lose. For safety, this dynamo has an overvoltage diode that protects the lighting from burning out during power surges. Number of contacts 4 pcs. Main color silver Mounting right Voltage regulator yes Type/kind Article Operating voltage 6.0 V