Waterproof Automatic Circuit Breaker, DC Circuit Breaker Fuse Holder with Manual Fuse Reset Switch for Car Engine Marine Boat Bicycle Stereo Audio

【Safety Protection】Prevent excessive current and protect your electrical device. Self-testing: the circuit breaker trips automatically when the current is overloaded. 【High-Quality Materials】The circuit breaker is made of plastic and metal, offering good conductivity and high resistance to temperature and pressure. 【Easy to Use】The circuit breakers allow you to easily connect or disconnect electrical circuits as needed. Plus, you don't need to spend extra money replacing fuses. 【Wide Application】Suitable for overload protection of car audio/video systems. Also for boats, bicycles, buses, RVs, and marine applications. Note: All data is measured manually, please allow 1-3cm error due to differences in light and display. There may be color differences; please refer to the actual item received.