Features： 1、DC 12V REGULATOR: This voltage regulator is usually installed on the engine and used to charge the battery, which is 4 wire 12V, 5KW single phase. 2、4 WIRES: 2 yellow wires are used for AC voltage input, 1 white wire is used for DC voltage output to 12V DC battery, and the fourth wire is for internal grounding. 3、ALUMINUM ALLOY BODY: The voltage stabilizer body is made of aluminum alloy, light in weight, high in strength and corrosion resistance. 4、SEAMLESS DESIGN: The regulator is seamless designed, simple for installation, match with the engine, with good wear resistance. 5、GREAT STABILITY: Professional manufactured, with exquisite workmanship, this regulator has great stability, ensures long term performance of the generator. Specification： Item Type: Diesel Generator Voltage Regulator Material: Aluminum alloy Model: 186F four wire Color: Grey Voltage: DC12V Single Phase: 5KW 4 Wires: 2 yellow wires are used for AC voltage input of generator, 1 white wire is used for DC voltage output to the 12V DC battery, the embedded circuit is internally grounded, as the fourth grounding wire. This is equivalent to a 4 wire 12V regulator Package List： 1 x Diesel Generator Voltage Regulator