2Pcs Adjustable DCDC Buck Boost Converter Automatic Wide Voltage Regulator XL6009 Voltage Module Key benefits Keeps your electronics running when input voltage varies: the XL6009 buckboost design automatically steps voltage up or down so the output stays at the set level. Simplifies power design: adjustable output eliminates the need for multiple fixed regulators and lets you power different devices from the same DC source. Compact and practical: two modules in one give redundancy or let you run separate circuits without extra sourcing. What it does and why it helps Automatic buckboost regulation: the module automatically operates as a stepup or stepdown converter depending on input vs. desired output, so it handles fluctuating battery, solar, or adapter voltages without manual switching. Adjustable output voltage: use the onboard trim potentiometer to set the required output voltage for your device, reducing the risk of overvoltage or undervoltage. Stabilizes power for electronics: provides a consistent voltage output for microcontrollers, sensors, motors, and other DC devices that require steady power. Key attributes Model: XL6009 switching regulator module (2 pieces included). Functionality: DCDC buckboost conversion with adjustable output. Voltage handling: designed as a widevoltage regulator (suitable for common DC input sources); set output to the voltage required by your load. Build: compact PCB module with integrated switching components, inductor, and adjustment potentiometer for convenient installation. Performance: switching regulator topology delivers efficient voltage conversion and a stable regulated output under varying input conditions. Compatibility: works with common DC power sources (batteries, solar panels, adapters) and typical DC loads (electronics, singleboard computers, LED drivers, small motors) when used within the module's operating limits. Package: 2 modules, ready for integration into projects or work. Typical applications Portable power supplies: regulate voltage from battery packs (singlecell or multicell) to run microcontrollers, sensors, and communication modules reliably as battery voltage drops. Solar and offgrid systems: maintain a set voltage for electronics powered from solar panels or variable renewable sources where input swings are common. Prototyping and DIY electronics: power Arduino, Raspberry Pi addons, LED arrays, and small DC motors with a single adjustable regulator instead of multiple fixed converters. Practical notes and recommendations Adjustment: measure the module's output with a multimeter while turning the onboard potentiometer to set the exact voltage required. Cooling and limits: switching regulators generate heat under load; allow ventilation and avoid continuous overload. Follow safe operating practice and monitor temperature during extended use. Connections: observe correct polarity when connecting input and output. Verify wiring and set voltage before attaching sensitive electronics. Use two modules for parallel projects, redundancy, or separate regulated rails. What's included 2 x Adjustable DCDC Buck Boost Converter XL6009 voltage regulator modules. This pair of XL6009 modules provides a flexible, compact solution for maintaining a steady DC voltage from a wide range of input sources. They are suited for hobbyists, technicians, and smallscale installations where automatic stepup/stepdown regulation and adjustable output are required.