Material: The fuse holder is made of alloy. It has good electrical conductivity, high technical content and high temperature resistance. It is used to replace the built-in fuse holder. Material: The fuse holder is made of alloy. It has good electrical conductivity, high technical content and high temperature resistance. It is used to replace the built-in fuse holder. Application: The car audio power supply is suitable for connecting an audio power cable and providing overload protection for the car stereo/video system. Specifications: Fuse speed: TT/extra slow; Shape: flat tube; Existing: 150 (A); Suitable for: 12v-24v DC; 4/8 input and output (diameter 4mm) Installation: Screw terminals hold the cable in place and can be mounted on a panel or firewall. Pure copper interface, stable performance: Has excellent electrical conductivity, thermal conductivity and ductility. The voltage of the electrical appliance is more stable during use, which can better protect the electrical appliance. Wide range of applications: Can be installed on a panel or firewall, mainly used for the modification of audio-visual systems, such as cars, ships, trucks, etc., and can also be used for other circuit safety protection systems. How to use: Toggle switch, recoverable switch, press to automatically recover, close the power supply, open the power supply. (You must press the opening button when closing, do not open directly) Size: 4GA (8GA) wiring hole: 5.5mm (with sleeve), 8.5mm (without sleeve). The red cap is a waterproof ring, the inner hole diameter is 10mm, and a wire core with a diameter of about 8mm can be inserted.