LED WARNING INDICATOR Red LED warning light will light up immediately when the corresponding fuse is blown. The waterproof fuse block will indicate exactly where there is a short circuit or any other fault it is both safe and easy for you to check and replace the blown fuse. SAFE MATERIAL FUSE BOX Made of environment-friendly PBT material, boat fuse block meets all the standards of an perfect marine fuse box. It is mechanically strong, insulated, heat resistant, and flame resistant. There will hardly cause any issue like produce fracture, deformation, combustion, or short circuit phenomenon. MAKE WIRES ORGANIZED Instead of piling a mess of wires and marine fuse block onto your battery posts, a 12v fuse block/ground bus kit gives you 12 dedicated fuses and 12 ground locations to keep all of your wires clean and organized. Made wiring electronics in your vehicles or boat a breeze. UNIVERSAL PROTECTION Whether you're building a massive overland lighting setup or adding power to your classic. marine fuse panel with 100 Amps capacity, 30 Amps perfuse, and ground bus bar 12v marine are more than capable of protecting all of your hard work. Bonus electric device name Labels are provided. You can quickly identify which appliance is going wrong. Easy to open insulating cover that provides access to fuses and satisfies ABYC/ USCG requirements. Colour: black Material: PBT Package Contents: 5 x 12-in 6-way fuse box holder 5 x PC waterproof and dustproof cover 10 sets x stickers 20 x 20A fuse 20 x 15A fuse 10 x 10A fuse 10 x 5A fuse