Piggy Back Fuse ATC fuse and Mini ATC, 2 sizes to choose from. The mini actualy fits into the ATC size, but the ATC will NOT fit into a mini fuse panel. Choose below. The piggy back fuse connectors are to easily connect your +ignition trigger wire to your relay or PWM. Fits standard auto blade fuses. Standard ( shown in photo) or mini size. Comes with one 15 amp fuse. Choose of 1) standard ATC or 2) mini size ATC