Check the listing for details. Permanent Magnet Silicon Synchronous Rectifier Generator Alternator Generator. Condition: New. Listed at 68.85 USD. 1200W 12V Copper Permanent Magnet Alternator Synchronous Generator PMA Low Rpm Product Description: ★ Permanent Magnet Silicon Rectifier Generator Is a Combination of Excitation Silicon Rectifier Generator and Permanent Magnet Constant Voltage Alternator. ★Adopting Magnetic Strip Rotor, Generator's Own Rectifier and Full-wave Voltage Stabilizer, Which Not Only Reduces the Cost, but Also Improves the Generator Power, It Is a New Generation Product. ★Pure Copper Material, Built-in Voltage Stabilizer, Dual-purpose Charging and Lighting ★This Product Can Be Used for Ac. the Wiring Method Is to Connect the Positive Pole of the Battery to the Generator "+" Through the Live Wire Controlled by the Button, and the Negative Pole Can Be Grounded for Charging and Lighting. Features: Shell Mater.