Feature: 1. Wide Application: Suitable for automobile, ship, yacht, railway, aviation, instrument, communication, wind energy photovoltaic system, LED field. 2. Power and Current: Input voltage range is DC 8V‑36V; Output voltage is DC 13.8V(non adjustable); Output current is 20A; Output power is 276W. 3. Powerful Guard: With multiple protections, such as Over load, Over current, Over temperature, Short circuit, Over voltage guard. 4. High Conversion Efficiency: Multiple intelligent guard functions of synchronous rectification technology, high conversion efficiency and good stability. The conversion efficiency can reach 96%. 5. Sturdy Material: Volt step down converter is made of aluminum shell and silicone sealed design,water resistant, anti shock, anti humidity and dust proof, more sturdy. Specification: Item Type: Step Down Up Converter Material: Aluminum + silica gel Conversion Efficiency: 96% Output Current: 20A Output Power: 276W Load Regulation Frequency: ＜ 2% Ripple&Noise: 170mVp-P No Load Loss: 90mA Operating Temperature: - 40 ℃ - 80 ℃ Water Resistant Grade: IP68 Input Wiring Specification: Wire gauge 12AWG (red positive, black negative) Output Wiring Specification: Wire gauge 14AWG (yellow positive, black negative) Application: For automobile, ship, yacht, railway, aviation, instrument, communication, wind energy photovoltaic system, LED field. Package List: 1 x Step Down Up Converter Note: