Special MAXI Fuse Blade for Car, Truck, Boat, Marine and RV. Used for automobile lighting, audio, UPS, auto headlights, taillights, stoplights, electronic circuit board or other electronic products with low voltage circuit. APX MAXI blade fuse (also called spade or plug-in fuse) comes with a high-temperature impact-resistant plastic casing & two prongs that fit into sockets mostly used in automobiles. Each fuse is printed with rated current in amperes on the top.