Yctze Adjustable USB DCDC Power Supply Regulator Converter, Step Up/Down Module with Variable Voltage Capabilities for Efficient Power Conversion

["Long handle potentiometer for convenient adjustment.","Low power, wide voltage output,suitable for more equipments.","【Convenient Adjustment】: This USB power supply regulator module is designed with long handle potentiometer for convenient adjustment.","Equipped With A Screen To Display Output Voltage.","[Adjustable Voltage]: The voltage regulator adopts multi-turn long-handle potentiometer for convenient adjustment","","","","",""]