Output voltage is 20V and can be adjusted using dialcode switches for precise control. Input voltage range: supports 4V to 22V input sources, enabling flexible use with various power supplies or batteries. Safety and protection: builtin overtemperature and overvoltage protection, along with additional protective functions to safeguard both the power supply and connected devices. Fast charging compatibility: PD decoy supports PD3.0/2.0, BC1.2 and other fast charging protocols, with a capability of up to 100W power delivery. Practical benefits: provides a stable and versatile 20V supply for compatible devices, while protecting equipment from common power issues and enabling compatibility with multiple charging standards. Use scenarios: 1) In a workshop or lab, power a 20V laptop or electronics from a 422V supply, with reliable protection during testing. 2) At home or in the office, charge PDenabled devices (phones, tablets, notebooks) using PD3.0/2.0 and other fast charging protocols, up to 100W. 3) For prototyping and development, use as a safe 20V supply to test circuits and devices requiring a stable 20V input, leveraging the protection features to prevent damage.