Optimal Conductivity: 12-slot fuse box for ATC/ATO (medium-sized) fuses; the automotive fuse holder has a positive and negative side, meaning there's a negative terminal screw for every positive terminal screw. Maximum operating voltage is 32V DC. Max. 30A per circuit and 100A per panel. High-quality and Safe Material: Made of PBT, this 12V blade fuse box is mechanically solid, insulating, and heat-resistant, ensuring safe use and helping to eliminate problems such as breakage, deformation, burning, or short circuits. Adds extra protection to your fuse box and fuses. Unique LED Safety Indicator: Car fuse holder with warning light. Fuses blow when the current is too high, and the red light turns on immediately, allowing you to easily determine whether there is a short circuit or other fault and fix it effortlessly. Widely Used: Comes with multifunctional DIY stickers according to your specific needs, convenient for inspection and repair, easy to troubleshoot outdoors; widely used in