JT&T Products (30-1070) - 70 AMP Smart Glow Maxi-Fuse, Brown, 1 Pc. Day or Night when a fuse blows Smart Glow Fuses indicate immediately which fuse needs replacing They Glow when They Blow Color-coded fuses instantly let you know the right amperage of the fuse to be replaced Built to exacting OEM specifications 1 Pc. in a re-closable package