Special blade fuse for automobile lighting, audio, UPS, auto headlights, taillights, stoplights, electronic circuit board or other electronic products with low voltage circuit. ATC/ATO 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.