High power plug, hardness, high resistance, arc resistance, heat resistance. | This is a standard parts, apply to almost all models of cigarette lighter socket.Also can use other appliances with terminal. Line nose aperture is 6.3 mm. | 12V and 24V are both allow, the output voltage is the same as the voltage in the car. | Male plug is fitted with 20A fuse to protect your vehicle and devices and has LED light indication of power on. | 14 AWG extension cable lengthened up to 4ft / 1.2m,red cord is positive, black cord is negative.