Features: This is a intelligent car battery disconnect switch system that you can use the remotes control to achieve remotely master of your car power system. Universal installation of positive and negative electrodes design makes it more convenient to install. This product can be used for 12V/200A battery car, campers, trailer, SUV and other suitable auto. Small size and integrated design, avert cumbersome wiring and convenient to install. The red wire is connected to the positive poles of the battery, and the black- wire is connected to the negative poles of the battery. This is the power supply for the switch, and the remote control switch consumes very little power. Do not connect the positive and negative poles in reverse, or the motherboard may be burned. Specifications: Material:Metal Working voltage: 12V Working current: 200A Remote Control Quantity:1pc,2pcs (optioanl) Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set Battery Disconnect Switch