Description:_x000D_ Icstation mini digital dc-dc voltage regultor module is equipped with STC LCD screen display the output voltage and current with input polarity reverse protection. On-board tactile push button to regulate the output voltage better than the potentiometer. Come along with the acrylic,once assembled it will turn into a portable digital voltmeter also protect the module._x000D_ _x000D_ Features:_x000D_ 1. Adopted of high quality electronic components, and accuracy processing, guarantee for the durability._x000D_ 2. Stable performance and high efficiency conversion rate. _x000D_ 3. Small body, this module can provide excellent performance._x000D_ 4. Great workmanship and it has good connecting._x000D_ 5. The display adopts high-brightness high-definition LCD screen, which can display voltage and current at the same time._x000D_ 6. Press the button to adjust the voltage, the left is the voltage reduction, the right is the voltage, the single button is fine-tuned to 0.04V, the long press 1S can quickly adjust the voltage, can withstand 100,000 times of pressing; compared with similar potentiometers, it is more convenient and quicker._x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Item Type: DC Step Down Power Supply Module_x000D_ Material: Iron + Plastic_x000D_ Input Voltage: 5-23V, please keep the margin, it is recommended to use within 20V._x000D_ Output Voltage: 0V-16.5V continuously adjustable, automatically save the last set voltage (the input voltage must be higher than the output voltage by more than 1V)._x000D_ Output Current: Maximum 3A, it is recommended to use within 2A. If the heat is large, please solve the heat dissipation problem yourself._x000D_ Input Anti-reverse: Yes_x000D_ Short Circuit Protection: None (do not use short circuit)._x000D_ Accuracy: 1%, Three-digit Display, Current unit is A._x000D_ Conversion Efficiency: Up to 95% (efficiency is related to input, output voltage, current, voltage difference)._x000D_ Load Regulation S (I) 0.8%, voltage regulation S (u) 0.8%_x000D_ Product Size: Approx. 62*44*18mm / 2.4*1.7*0.7inch_x000D_ Weight: Approx. 45g / 1.6oz_x000D_ _x000D_ Calibration Instructions: _x000D_ This module has a calibration function, so you don't have to worry about the measurement display error. If you find that the display is inaccurate or the display value is stuck, and the left and right buttons cannot adjust the voltage, you can use the following method to calibrate._x000D_ Calibration Method: In the case of power failure, press and hold the left button to enter the power supply, the display starts to flash, release the left button, measure the output voltage with a multimeter, press the left and right buttons to adjust to the multimeter to display the closest 5V, such as: 4.98 to 5.02 are OK, the LCD display of the adjustable power supply can be used without any tube. After adjusting, the power supply is turned off, and then the power is turned on, that is, the calibration is completed. The error can be calibrated to within 0.04V. If the error is larger, try again._x000D_ _x000D_ Package list:_x000D_ 1 x DC Step Down Power Supply Module_x000D_ _x000D_ Notes:_x000D_ If it is used for charging, charging is completed, please disconnect the battery end first, then disconnect the input terminal to prevent the battery from flowing back to damage the module!