Buck 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 power is 300W. The step down regulator can apply to constant output current. Application: DIY stabilized voltage supply, LED car display, mobile power, industrial equipment appliances, LED driver, monitor, solar energy, fans, photovoltaic energy, motor, etc Adopting 75V / 80A large current dual MOS tube designed step-down board, Input and output use high frequency low resistance electrolytic capacitor, low ripple, and gives a stable output. Large current 30A connection screw terminals, more convenient to install Short Circuit Protection: Self-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: 3 x Adjustable DC Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.