The product is made of PC material, which has excellent electrical insulation, extensibility, dimensional stability and chemical corrosion resistance. It has a wide range of operating temperatures and meets the conditions that the fuse holder has good mechanical strength, insulation, heat resistance and flame retardancy, and should not produce fracture, deformation, combustion, short circuit and other phenomena in use. Total 20A high output: by taking power directly from the main power supply, the burden of the electrical equipment can be reduced and the output can be improved. The product can be connected to the lines of four groups of electrical appliances on the vehicle, which makes the wiring easier and convenient, and the lines are not messy, so as to prevent potential safety hazards. The product has LED indicator light design, which corresponds to the electrical appliances connected to each fuse. When is powered on normally, the indicator light is blue; When the fuse is