3Pack XL4015 DC-DC Buck Converter- Lithium Battery Charging Board Adjustable Step Down Module Constant Current Voltage

Description: The Input voltage: 4 -38V The Output voltage:1.25 -36V adjustable The Output current:Adjustable maximum 5A Working temperature:-40? ~ 85? Output power:Max 75 W Working frequency:180 KHz Turnover efficiency:Maximum 96% Temperature protection: Automatically shut off output once over temperature. Input Reverse Connection Protection:No, if necessary, input a high flow diode into the input. Function 1.as a general step-down module with overcurrent protection capablility. 2.as a variety of voltage lithium batteries, nickel-cadmium nickel-metal hydride batteries. 3.as a a high-power LED constant current drive module. Usage:(Use as a step-down modules with overcurrent protection) (1) Adjust the right button so that“OUT”LED lighted, Digital meter shows the value of output voltage ,adjust the“voltage potentiometer”so that the output voltage reaches the value you want. (2) Adjust the right button so that Digital meter shows the value of output current;Wire shorted output terminal, then adjust the“current potentiometer”so that the output current reaches a predetermined overcurrent protection value. (For example, the Digital meter displays the current value of 4A, then you can use the module to a maximum current of 4A) (3) Connected to the load. Package includes: 3 pcs DC to DC Lithium Battery Step down Charge Board