DC-DC Buck Converter 4V-40V 8A Step-Down Voltage Power Module PWM Modulation Short protection Integrated Circuits Specifications: Size: 61*41*27mm Voltage regulating mode: PWM modulation Input voltage: DC4-40V Output voltage: DC1.25-36V Max output current: 8A Max power: 200W Conversion efficiency: 94% Switching frequency: 180KHZ Features: 100% brand new and high quality This product uses the XL4016 switch type voltage regulator chip, with MBR10200 double rectifier, the maximum input up to 40V, the output voltage 1.25~36V continuously adjustable With Over current protection, Over temperature protection,Short circuit protection Panel Mounting: 1. Drill holes in the Panel 7mm 2. Extended potentiometer handle 3. Lock screw sleeve upper knob Please note: When reach maximum output current 8A, need to add fan. Long term work recommended about 5A Package Included: 1 x DC step down voltage power module