With EC5 Plug Connector Emergency Jumper Cable Clip Intelligent Clamp Booster Anti Reverse Connection 650A 12V Features: The battery clamp is made of excellent copper material to ensure better conductivity and provide safety . After the automobile is started, the anti back charging current is less than 1A, the clamp is safer and more reliable. Connect the red clip with the black clip, there is no damage or spark when powered on, provides short circuit . The battery wire clip is made of excellent ABS plastic, with good insulation, resistance and aging resistance. The test wire clamp is used for emergency automobile start and battery booster cable, with strong practicability This battery clamp is made of high-quality copper, ABS plastic shell, and thickened silicone wire as raw materials. Therefore, it has good electrical conductivity, water resistance, and wears resistance performance. This battery clamp has a stable 12V voltage, it can supply power smoothly to protect the car starter. Specifications: Color: Black+Red Material: Metal+Plastic Input Voltage:12V Size:(as show in the picture) Notice: When Green light,forbid the short circuit or reverse connecting to car battery Package Included: 1xSmart BatteryCableClips _x000D_