Specifications: Very convenient to use, plug in USB or micro USB to output adjustable voltage of 1.2V-24V. One-button shutdown output. The digital tube can be turned off. Multi-turn precision adjustable potentiometer adjustment. The state before the power failure storage is powered off. One button to turn off the output. Supply ON/OFF display screen. Support low power mode. Support sleep mode. Support both standard USB and Micro USB and pads input voltage. Potentiometer with rotating handle. Use Steps: 1. Input voltage from standard USB or Micro USB or VIN+ and VIN-; 2. Turn ON display screen; 3. Adjust potentiometer to get the required voltage; 4. Connect load. Application: 1. Ordinary power supply; 2. Battery charger; 3. LED drive power; 4. Instrument voltage display; 5. Test meter; 6. Circuit test; 7. Power conversion. Item Name: Power Module Measuring Range: DC 4.5-40V Input: 3.5-12V Output: 1.2-24V Operating Temperature: -20 ~ 60 Celsius Degree Application: Power Supply Module Material: Semiconductor + RF4 Features: Compact Size, Digital, Useful Size: 80mm x 28mm x 14mm/3.15" x 1.10" x 0.55" (Approx.) Notes: It is not a high power supply, please use it within the power range. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Power Module