Indicator for Blown Fuse with red warning indicator, you can quickly identify & replace blown immediately! Can be widely used , , modified cars, buses, subways, airplanes, , ships, boats etc. Features - Color: Black. - Material: . - Size: 11.5 x 8.5 x 3.5 cm. - Indicator for Blown Fuse: If a fuse blows the red next to the problem fuse, illuminates allowing for fast and identification of a fault. - Widely Used: Can be used in electrical devices, car, truck, buses, SUV, home, boat, camper/RV, ATV, all system with maximum of 30 Amp per circuit & 100 Amp per panel. - Application: Protects your vehicle and electrical devices from a short circuit or overload. - Easily identify & replace blown immediately. The indicator lights up when a blown fuse is detected. - Product distribution double fuse, when applied, the fuse is burned, you can immediately replace from the spare fuse. Package list: 1 Way Fuse Box