Fitted with micro-miniature SMP resistance and advised electronic circuit, featuring small volume, big power, safe, dependable and easy repair. Adopting SMD spot welding technology, the control base plate is small and precise. Adopting SMD spot welding technology, the control base plate is small and precise. With H20 advanced silicon steel sheet core, the power supply is stable, free of burn, safe and dependable. - In gilded coating, the electric driver holder has good electric conductivity. The nickel-plated handle is hard, durable and resistant to damage. The insulated rubber base is simple and attractive and conforming to safety regulations. The power cord is designed in detachable type and can be replaced according to different application regions.