1Wide Applicability: This fused power distribution block is suitable for the amp or stereo audio system, solar panel, battery of automotive, car, camper, truck, trailer, Utv, marine, boat, etc. 2Excellent Performance: This fused power distribution block both for power and ground, it allows 2 inputs and 4 outputs. Positive with 4 way Midi fuse block, and with negative ground. 3Strong Construction: Contact connectors are sanded with nickel plating and will not fade over time. The detachable plastic housing helps protect the device from the external environment. 4Safe Protection: The fuse block is designed with red LED indicator, which will light up when the fuse is blown to help you easily identify the state of the fuse. But if all is well, it remains extinguished. The transparent case allows you to easily identify problems with the fuse. 5Durable Lifespan: With exquisite workmanship and manufacturing, our power distribution block has undergone extensive testing to ensure maximum durability.