Valefod 2 Pack DC-DC 5A Buck Converter 4-38V to 1.25-36V Regulator LED

Valefod 2 Pack DC-DC 5A Buck Converter Module with LED Display

This listing includes two high-power DC-DC buck converter modules from Valefod, featuring an integrated LED display to show voltage readings. These modules are designed for efficient voltage regulation with advanced features for reliable performance.

Key Features

• High power DC-DC converter module
• Thickened circuit boards for durability
• Advanced solid-state capacitor for stability
• Built-in short circuit and over-temperature protection
• 100% tested and sealed in anti-static packaging

Important Notes

Please review the following notes before use:

• Input voltage must be at least 1.5V higher than the output voltage; this is a buck converter and does not boost voltage.
• Do not reverse the input and output interfaces.
• Keep output current under 5A (or 75W). Use a heatsink for extended high-power operation.
• Factory settings may result in a high initial output voltage. You may need to adjust the blue potentiometer by turning it counter-clockwise approximately 7-15 circles for the output voltage to change.

How to Calibrate the Digital Tube Voltmeter

Follow these optional steps for precise voltage readings:

• Power On/Off: Short press the left 'ON/OFF' button to start the voltmeter. Long press (>1s, <4 seconds) to shut it down.
• Enter Calibration: Long press (>4 seconds) the left button to enter voltage measurement self-calibration (range: -0.5V to +0.5V; factory setting is 0.0V). The 'IN' indicator lights up for input voltage calibration.
• Switch to Output Calibration: Long press (>2 seconds) the right 'Mode' button. The 'OUT' indicator lights up for output voltage calibration.
• Adjust Voltage: Tap the left/right button to decrease/increase by one unit. Note that each unit is less than 0.1V; multiple taps may be needed for a 0.1V change.
• Save Calibration: Long press (>2 seconds) the right 'Mode' button to save the adjusted value (settings are retained after power loss) and return to normal display.

Specifications

• Model: XL4015E / Digital Tube Voltmeter
• Input Voltage: DC 4V - 38V
• Output Voltage: DC 1.25V - 36V (adjustable)
• Output Current: 0-5A (recommended working current <4.5A)
• Conversion Efficiency: 96% (maximum)
• Switching Frequency: 180KHz
• Operating Temperature: -45℃ to +85℃
• Size (L x W x H): 62mm x 38mm x 14mm
• Weight: 32g

Package List

• 2x DC-DC buck converter modules with LED display
• 8x Copper cylinder / screw nut
• 2x Heat sink