1. Wide input voltage range of 10 60V, suitable for most power supplies on the market. Constant output voltage and current, with stepless adjustable voltage and current. Can meet the requirements of most electrical devices. output power, good ventilation, and natural heat dissipation can reach 280W/12A (note the limits of output power and current). 2. Product: BK0612 Module name: Constant Current Constant Voltage Buck Converter 400W. Module type: Non isolated. Input voltage: 10.5 60V. Output voltage range: 0 45V (must meet step down conditions, input multiplied by 0.8). Minimum output voltage: 0V (1V). Maximum output voltage: Approximately input x 0.8 (e.g., input 40V, 40V x 0.8 32V). 3. The maximum output voltage is 32V, but in practice, it is around 34V 35V. Output constant current: 0.2 15A (continuously adjustable, power dissipation increases when exceeding 12A). Maximum output power: 400W (a fan must be added for forced cooling of the heat sink and magnetic ring). 4. The module features a step down rectification circuit with efficiency. When the output voltage exceeds 10V, efficiency is over 92% 96%. Constant current indication during battery charging. The charging status is clearly visible. The input includes a 15A fuse, and reverse polarity connection of the input terminals will not damage the power supply (the fuse will blow and needs replacement).