Welcome to our shop! Icstation mini digital dc-dc voltage regulator module is designed with high-quality electronic components and precision processing to ensure durability. It offers stable performance and high efficiency conversion rate. Despite its small size, this module provides excellent performance. Featuring a high-brightness high-definition LCD screen, the display can show voltage and current simultaneously. The module is equipped with a tactile push button for voltage adjustment, with the left button reducing voltage and the right button increasing voltage. The single button allows for fine-tuning of 0.04V, and a long press of 1S enables quick voltage adjustment. It can withstand 100,000 button presses, making it more convenient and efficient compared to similar potentiometers. The module also comes with input polarity reverse protection and an acrylic cover for assembly, which turns it into a portable digital voltmeter while providing protection. Specification: - Material: Iron + Plastic - Input Voltage: 5-23V (recommended to use within 20V) - Output Voltage: 0V-16.5V continuously adjustable (input voltage must be higher than output voltage by more than 1V) - Output Current: Maximum 3A (recommended to use within 2A) - Input Anti-reverse: Yes - Short Circuit Protection: None (do not use short circuit) - Accuracy: 1% (Three-digit Display, current unit is A) - Conversion Efficiency: Up to 95% - Load Regulation S (I) 0.8%, voltage regulation S (u) 0.8% - Product Size: Approx. 62*44*18mm / 2.4*1.7*0.7inch - Weight: Approx. 45g / 1.6oz Calibration Instructions: This module has a calibration function to ensure accurate measurement display. If you encounter display inaccuracies or values getting stuck, and the left and right buttons cannot adjust the voltage, you can follow the calibration method below: 1. Power off the module. 2. Press and hold the left button to enter the power supply mode. The display will start flashing. 3. Release the left button and measure the output voltage using a multimeter. 4. Use the left and right buttons to adjust the voltage to the closest 5V on the multimeter display (e.g., 4.98 to 5.02). 5. After adjusting, turn off the power supply and then turn it on again to complete the calibration. The error can be calibrated to within 0.04V. If the error is larger, try again. Package list: - 1 x DC Step Down Power Supply Module 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.