Description: High current diode: with input reverse connection protection function. Copper wire core large inductance: inductance coil acts on the limited current of alternating current, it can form a high-pass or low-pass filter, a phase shift circuit and a resonant circuit with a resistor or a capacitor, passing DC, resisting AC. Aluminum alloy heat sink: do not exceed 5A for long time use. If it exceeds 5A, fan should be used for heat dissipation. Two sets of capacitor design, larger capacity, more high temperature resistance. 1.6mm double-layer high-density glass fiber circuit board, the edge does not layer and bulge when used for a long time, has a long service life. Specification: Main material: PCB Maximum power: 200W Output current: up to 8A (long-time use recommended 5A) Step-down chip: XL4016E1 Conversion efficiency: 94% Input voltage: DC 4-40V Output voltage: DC 1.25-36V Voltage regulator potentiometer: counter-clockwise rotation voltage decreases, if the rotation of the copper column voltage has not changed, you can rotate 5-10 laps Item size: 61x40x29mm Package Includes: 1 Piece DC-DC Step Down Power Supply Module