1. [TRANSPARENT SHELL] The DC-DC Step Down Power Supply Module comes with a transparent acrylic shell, ensuring clear visibility of the components while providing necessary protection. This thoughtful design allows users to monitor the module effortlessly, ensuring you always know the operational status at a glance, enhancing both safety and usability.
2. [LCD DISPLAY] Equipped with an advanced LCD display screen, this module uniquely shows both Voltage and Current readings simultaneously. The clear display facilitates easy monitoring and adjustment, making it ideal for both professionals and hobbyists working on various electronic projects, ensuring in every application.
3. [EASY VOLTAGE ADJUSTMENT] Enjoy the convenience of button-controlled voltage adjustments; simply press the left button to decrease and the right button to increase voltage. With every press changing the voltage by 0.04V, and a rapid adjustment feature with a long press, regulating your settings has never been or simpler, perfect for real-time requirements.
4. [DURABLE DESIGN] This module is designed for longevity and frequent use, capable of withstanding up to 100,000 button presses. Unlike conventional potentiometer-based systems, it provides a more durable and reliable voltage regulation solution, making it an attractive option for users seeking dependability in applications.
5. [SPECIFIC FUNCTION] It is vital to note that this product serves as a dedicated step down converter. To operate correctly, your input voltage must be maintained at least 1V higher than the desired output voltage, ensuring safe and effective power supply regulation for a variety of electronic devices and projects.

Specification:
Features:
With transparent acrylic shell, easy to read while protecting the module
Using LCD display screen, Voltage and Current can be displayed simultaneously
Using button adjustable voltage, left button to reduce the voltage, the right button to increasing voltage. press button one time can adjust 0.04V voltage, press and hold more than 1 second to quickly adjust voltage.
Can withstand 100,000 presses; Compared with similar potentiometer voltage regulation more convenient and fast.
Only can be used as a step down converter, and input voltage should be >1V higher than output.
Specifications:
Input Voltage: DC 8V~60V (Recommended within 55V, Input voltage must be higher than the output voltage 1V above)
Output Voltage: DC 3V~32V Continuously adjustable (It can save the last set voltage automatically)
Output Current: Maximum 7A (Recommended use within 5A, Please pay attention to heat dissipation.)
Accuracy: 1%, the voltage three bits display, the current two bits display, the unit is "A".
Input Anti-reverse Protection: Yes
Short Circuit Protection: Yes
Conversion Efficiency: Maximum up to 95%
Load Regulation S(I): ≤0.8%
Voltage Regulation S(U): ≤0.8%
Size: 62 x 44 x 18mm / 2.59 x 1.73 x 0.7in
Weight: 67g
Voltage Calibration Method:
Power-off no load status, press and hold the left button access the power supply, release the left button, the display voltage starts flashing, then using multimeter measured the output terminal voltage, press the left and right keys to adjust the module display voltage value is the same as the multimeter display voltage value, for example: multimeter measurement is 12.6V, then the module can be transferred to display 12.6V, three seconds automatically save, re-power that voltage calibration is complete. The error can be calibrated within 0.04V, if the error is greater, you can try to calibrate again.

Current Calibration Method:
After calibrated the voltage is completed, connect the load, with a multimeter to measure the actual current value, power off the power supply, then press and hold the right button access the power supply, release the right button, the display current value starts to flash, press the left and right keys to adjust the module display current value is the same as the multimeter display current value, such as: multimeter measurement is 1.8A, then the module can be transferred to display 1.8A, three seconds automatically save, re-power that current calibration is complete.
Package includes:
1 x Step-Down Module Kit
1 x Acrylic shell
Note:
If it is used for charging, after charging, please first disconnect the battery end and then the input end to prevent the battery from damaging the module by backflow. Or at the output end add a diode preventing backflow