This is a five piece set of DCDC XL4015 buckdown voltage regulator modules. Each module accepts an input in the range of 4 to 38 volts and provides an adjustable output from 1.25 to 36 volts. The XL4015based regulator is rated for up to 5 amps, with an overall power capability up to 75 watts per module, enabling flexible and efficient voltage regulation in a compact board format. Key benefits Wide input range: compatible with sources from 4 V to 38 V, including automotive, battery, and bench supplies. Adjustable output: fine tune the regulated voltage from 1.25 V up to 36 V to match the load requirements. current capability: up to 5 A maximum current per module for powering microcontrollers, sensors, LED drivers, small motors, and other loads. power handling: up to 75 W per module enables effective regulation for a variety of applications. Convenient set: includes 5 identical XL4015 buck regulator modules, suitable for powering multiple subsystems from a single source. Easy configuration: onboard adjustment potentiometer allows precise voltage setting without additional components. Key attributes Model: DCDC buckdown regulator modules based on the XL4015 chip. Functionality: buck converter with adjustable output. Input voltage range: 4–38 V. Output voltage range: 1.25–36 V (adjustable). Maximum output current: up to 5 A per module. Maximum power rating: up to 75 W per module. Contents: 5 modules in the set. Adjustment method: onboard potentiometer for voltage setting. Applications and use cases Automotive or portable power projects: convert a 12 V car battery or other 12–24 V sources to a stable 5 V supply for microcontrollers, sensors, or USB peripherals. Prototyping and lab work: from a variable input (4–38 V) regulate to 3.3 V, 5 V, or other logic voltages required by development boards and embedded systems. Multiload systems: power multiple subsystems from a single highervoltage source by distributing the five identical modules to supply separate loads with individually set voltages. Notes The set includes five XL4015based buck converter modules, each providing adjustable voltage within the stated input and output ranges. Use the onboard potentiometer to set the desired output voltage and verify with a suitable voltmeter before connecting sensitive loads.