Features 1.High Conversion Efficiency: The input voltage of this buck module is DC4‑40V, the output voltage is DC1.25‑36V, and the conversion efficiency reaches 94%. 2.Good Performance: Using high performance XL4016E1 chip, input and output signals are stable and efficient. 3.With Potentiometer: The potentiometer adjusts the voltage, turning clockwise to increase the voltage, turning counterclockwise to decrease the voltage. 4.With Voltage Regulation: The buck module is equipped with voltage regulator, the maximum power is 200W, and the operation is safer. 5.Compact Size: DC buck module is small and compact, convenient for wiring and maintenance, and has strong practicability. Specification Item Type: DC Buck Module Model: XH-M400 Buck Chip: XL4016E1 Input Voltage: DC4-40V Output Voltage: DC1.25-36V Maximum Power: 200W Output Current: Maximum 8A (5A is recommended if use a long time) Conversion Efficiency: 94% Product Size: Approx. 61 x 40 x 29mm / 2.4 x 1.6 x 1.1in Package List 1 x Buck Module