Key features Input range: accepts 4–38 V DC. Output range: adjustable from 1.25–36 V DC. Digital display: shows the actual output voltage for accurate setting and verification. Simple control: rotary potentiometer knob — turn clockwise to increase output voltage, counter‑clockwise to decrease. Safety note for current: for loads drawing more than 5 A, improve heat dissipation (use a heatsink and/or forced air cooling). Why this module is useful Precise, visible voltage control: the built‑in digital readout lets you set and confirm the exact output voltage without additional meters. Wide compatibility: works with many DC sources and loads that fall inside the input/output ranges (batteries, 12 V and 24 V systems, bench supplies, etc.). Easy to operate: the single potentiometer provides intuitive adjustment; set the voltage first, then connect the load to avoid damage. How to use safely and effectively Set output before connecting the load: adjust the knob to the desired voltage while the load is disconnected, then attach the load to prevent accidental overvoltage damage. Turning the knob: clockwise increases the output voltage; counterclockwise decreases it. Manage heat for currents: if operating above 5 A, apply additional heat dissipation measures (heatsink, ventilation or fan) to maintain safe device temperature and reliable performance. Practical applications Electronics testing and prototyping: power modules and circuits that require a stable, adjustable DC voltage for component testing or development work. Automotive and batterypowered projects: step and tune voltage from 12 V or 24 V sources for accessories, sensors, or charging circuits within the supported ranges. LED strips and small motors: adjust brightness or speed by setting the required DC voltage, taking care to provide adequate cooling for higher currents. Notes on compatibility and specifications Confirm your source voltage falls within 4–38 V and that the required output is within 1.25–36 V before use. For current draw greater than 5 A, plan for enhanced heat dissipation to ensure safe, reliable operation. The digital display reports the output voltage for quick verification during setup and operation. Follow these guidelines to get reliable, adjustable DC power while protecting your connected devices and ensuring stable performance.