General description High Quality Rectifier: 12V 4-Pin Voltage Regulator Rectifier with Male Connector. Made of high-quality materials, this regulator rectifier provides good protection by preventing overcharging, improving capacity, and stabilizing current. Its proper heat sink design allows for better heat dissipation and longer life at room temperature. Technical specifications Voltage: 12V Connector: 4-Pin Male Compatibility and accessories Compatible with scooters, mopeds, ATVs, go-karts, and dirt bikes with GY6 engines. Installation Plug and play, direct replacement for OE, easy to install; no assembly required.