converter input voltage range is DC 6-40V, adjustable output voltage range is DC 1.2-36V, can be used to convert 24v to 12v 5v, adjustable output current range is 0-20A, max output is 300W. The step regulator can apply to constant output current. Application: DIY stabilized voltage supply, LED car display, mobile , industrial equipment appliances, LED driver, monitor, solar energy, fans, photovoltaic energy, motor, etc Adopting 75V / 80A current dual MOS tube designed step- board, Input and output high frequency low resistance electrolytic capacitor, low ripple, and gives a stable output. current 30A connection screw terminals, more convenient to install Short Circuit Protection: -recovery(cannot short circuit for long time) ;When input and output is common grounded, no-load CV output constant voltage, CC output constant current. colour:Blue Material:PCB size:8 x 7 x 3cm Package Contents: 1 x Adjustable DC Module Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.