Feature: 1. ADJUSTABLE PWM OUTPUT: Using original IRF520 power MOS tube, PWM output can be adjusted, flexible and convenient, very practical 2. DRIVE UP TO 24V LOADS: DC‑DC buck module can drive loads up to 24V, such as LED strips, DC motors, micro water pumps, solenoid valves 3. STEPLESS DIMMING AND SPEED REGULATION: Using PWM adjustment can realize LED stepless dimming and motor stepless speed regulation, simple to operate 4. 4 POSITION BINDING POSTS INPUTS OUTPUTS: Both inputs and outputs use 4 position binding posts, eliminating the need for stranded wiring, more convenient 5. 1.5V‑33V PRESET: The module adopts 6 bit DIP switch, 0.5V step coarse adjustment, convenient and quick to preset 1.5V‑33V arbitrary voltage Specification: Item Type: DC-DC Buck Module Voltage: 3.3V, 5V Port: Digital level Output Load Voltage: 0-24V Output Load Current: <5A (a heat sink is required for more than 1A) Platform: MCU, ARM. Package List: 5 x DC-DC Buck Module Note: The trimmer potentiometer has been adjusted, and the user can directly dial the DIP switch to set in 0.5V steps. If the user adjusts the trimmer resistor by himself, 0.5V step setting is required, just turn the trimmer pot back.