Feature:Product type: XH-M400Maximum power: 200WOutput current: up to 8A (long-term use recommended 5A)Step-down chip: XL4016E1Conversion efficiency: 94%Input voltage: DC4-40VOutput voltage: DC1.25-36VAppearance size: 61 40 29mmVoltage regulator potentiometer: counter-clockwise rotation voltage decreases, if the rotation of the copper column voltage has not changed, you can rotate 5-10 lapsPackage includes:1 x XH-M400 Step Down Module