Features: 1. Widely Applicable: The power supply terminal is suitable for power or grounding cables. Wire reducers can be used in most cars, ships, yachts, RVs, and other vehicles, effectively improving electrical transmission performance. 2. Easy to Install: The wiring terminals do not require crimping and are simple to install without special tools or professional assistance. They allow for quick and independent installation. 3. Secure Connection: The terminal block is designed to provide a tight and reliable connection with the cable, minimizing the risk of disconnection or electrical loss, helping to maintain system performance. 4. Durable Construction: Made of aluminum alloy, the wire reducer offers good conductivity, high hardness, and resistance to corrosion and rust. It is built to endure harsh environmental conditions and provides long-lasting performance. 5. Compact and Portable: With a length of 50mm (1.97 inches), a threaded ring diameter of 16mm (0.63 inches), and a weight of approximately 67g, the terminal is lightweight and easy to carry or store. Specification: Item Type: Amplifier Input Reducer Adapter Wiring Hole: 1/0AWG to 4AWG Product Material: Aluminum Alloy Fitment: Compatible with cars, ships, yachts, and RVs