Special blade fuse for automobile lighting, audio, UPS, auto headlights, taillights, stoplights, electronic circuit board or other electronic products with low voltage circuit. APS ATT Slim Low Profile Mini 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.