1Wide Application: The 13V?72V to 12V 120W voltage regulator rectifier is wide applicable for Golf carts, cars, trucks, electric motors, solar Mats, etc. 2Shockproof: The rectifier is high precision maded, adopts surface mount technology and has strong anti vibration and anti interference ability. 3Function: Rectifying and controlling the power supply, providing a stable voltage for the battery and improving the ignition efficiency of the engine. 4Save Fuel: The rectifier can improve ignition efficiency, make fuel combustion more adequate, improve fuel efficiency, and reduce the use of vehicle fuel consumption. 5Improve Engine Power: The rectifier can provide stable voltage, directly improve the performance of low speed torsion of vehicles, enhance engine power, increase speed, and climb more effectively. 6Safety Ensured: The voltage rectifier has built in overload and overcurrent protection, over temperature protection, output short circuit protection ensure safe operation.