Description: Brand new and high quality Max. withstanding current of this battery switch: V/4V 00A The key can be taken down when there is no power connection. In this way, power supply will not be viciously switched on. Waterproof cover can better protect key hole. Round disk diameter: 6.5 mm Height: 0 mm (no key) Overall height: 05 mm (with key) Contact resistance: 50m Insulation Resistance: 00M Dielectric strength: 500VAC/min Electrical life: 0000 times This product is suitable for professional racing and car modification, installation is simple, safe and convenient. Package included: x Power switch x Key x Waterproof cover