Features: and high quality. Input voltage range: 4-40V. Output voltage range: 1.25-36V. Digital display shows output voltage. Adjust the potentiometer knob clockwise to increase output voltage; counterclockwise to decrease output voltage. Re-adjust voltage before connecting load to prevent damage. Low voltage display precision: 0.01V. High voltage display accuracy: 0.1V. Includes short circuit protection, input reverse polarity protection, and over-temperature protection (output cuts off when overheated). Specifications: Product Name: DC Voltage Regulator Module. Model: XH-M404. Voltage Mode: PWM Modulation. Input Voltage: DC 4-40V. Output Voltage: DC 1.25-36V. Maximum Current: 8A (recommended continuous current 5A). Maximum Power: 200W. Conversion Efficiency: 94%. Switching Frequency: 180KHz. Note: Maintain an input-to-output differential pressure of at least 2V. Use with recommended current for long-term operation. For high power applications, add cooling such as a fan to improve heat dissipation. This module is a step-down converter, not a step-up converter. Allow 1-3mm measurement deviation due to manual measuring. Package Includes: 1 x XH-M404 DC Voltage Regulator Module