Adjustable DCDC power module with a digital voltage display. Key benefits Precise voltage control: use the potentiometer to set the output. Turning clockwise increases the voltage; turning counterclockwise decreases it. Clear readout: a digital display shows the current output voltage for accurate monitoring. Wide input and output ranges: input voltage can be 4 to 38 V, and output voltage can be adjusted from 1.25 to 36 V. Safe adjustment and loading: after setting the output, ensure the connected load is appropriate to avoid damage. Heat dissipation guidance: for loads above 5 A, provide improved heat dissipation to maintain performance. Specifications Input voltage range: 438 V Output voltage range: 1.2536 V Display: digital voltage readout Adjustment: potentiometer, clockwise increases output, counterclockwise decreases output Heat considerations: for currents over 5 A, enhanced cooling is recommended Applications Electronics prototyping and test benches: supply a controllable voltage for microcontroller boards and sensors. Automotive and batterypowered projects: derive a stable voltage from 438 V sources such as car batteries or solar panels. Education and hobby projects: demonstrations of voltage regulation with a visible digital readout.