【STABLE CONNECTION】 The cigarette lighter socket has an inner diameter of 21mm, a standard size that allows it to hold most plugs securely and provide a stable connection. 12v cigarette lighter socket is equipped with a 2.5mm²/13AWG solid copper cable that supports 20A current, a cable length of 10FT, and solid copper eyelets at the end of the cable. The inner diameter of the terminal is 8.4mm. 【HIGH QUALITY 12V OUTLET】 12v power outlet is made of pure copper cable and brass socket with good conductivity, the cable is made of thickened insulated high temperature resistant pvc material with long service life. 12v socket and cable are injection molded and won't come loose. 12v outlet socket is threaded on the outside with a diameter of 28.5mm at the threads. 【SAFETY PROTECTION】 The 12 volt cigarette lighter socket has a built-in 20A fuse in the fuse holder, which can well protect the car battery and prevent high current or short circuit from damaging your device. The 12v power supply car plug outlet also comes with 2 extra spare fuses (20A, 25A). 【WATERPROOF AND DUSTPROOF】 12 volt power supply cigarette lighter plug comes with a rubber cap, the rubber cap can be opened or closed quickly, you can cover the rubber cap to prevent dust and water from entering the inside of the 12 volt power outlet when you don't use the car cigarette lighter socket. 【WIDELY USED】 12v socket power outlet is widely used for installing or replacing 12 volt outlets in cars, motorcycles, boats, etc. It can be directly connected to 12v deep cycle batteries, female cigarette lighter socket is suitable for high power devices, such as air pumps, inverters, car refrigerators, water heaters, vacuum cleaners, coffee maker, rice cooker, etc. The cigarette lighter socket has an inner diameter of 21mm, the standard size allows it to securely hold most plugs, stable connection, equipped with 2.5mm²/13AWG/10FT pure copper cable, supports 20A current, the pure copper eyelet terminal at the end of the cable has an inner diameter of 8.4mm. 12v power outlet is made of pure copper cable and brass socket, good conductivity, the cable is made of thickened insulated high temperature resistant PVC material, long service life. 12v socket and cable are injection molded and won't come loose. 12v outlet socket diameter at the thread is 28.5mm. The 12 volt cigarette lighter socket has a built-in 20A fuse in the fuse holder, which can well protect the car battery and prevent the high current or short circuit from damaging your device. 12v power supply car plug outlet also comes with 2 extra spare fuses (20A, 25A). The 12 volt power supply cigarette lighter plug comes with a rubber cap, the rubber cap can be opened or closed quickly, when not using the car cigarette lighter socket you can cover the rubber cap to prevent dust and water from getting inside the 12 volt power outlet. 12v socket power outlet is widely used for installing or replacing 12 volt outlets in cars, motorcycles, boats, etc. It can be directly connected to 12v deep cycle batteries, female cigarette lighter socket is suitable for high power devices, such as air pumps, inverters, car refrigerators, etc.