Using STN liquid crystal display screen, Voltage and Current can be displayed simultaneously, blue background and white character, wide angle and wide field of view. 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. Calibration Steps: When power outages, long press left button access the power supply. Then the display starts flashing, at this time, release the left button, measure output voltage with multimeter. When you press the left or right button until the screen displays near 5V, For example, 4.98V-5.02 is all right, the screen will show 5V. After adjusting the voltage, please shout off the power supply. Then you completed the calibration. SPECIFICATION Input Voltage: 5~23V, Max 23V, recommended to use within 20V Input voltage must be higher than the output voltage 1V above Output Voltage: 0~16.5V adjustable (It can save the last set voltage automatically) Peak Current:Recommended use in 2A, accuracy of 1%, the minimum display 0.01A, less than 10mA will not be displayed. Peak Current: 3A (Recommended use in 2A, accuracy of 1%, the minimum display 0.01A, less than 10mA will not be displayed.) Conversion Efficiency: 95% Load Regulation S(I) �.8% Voltage Regulation S(U) �.8% Size: 62 x 44 x 18mm Note: Please check the input positive and negative polarity before connecting, reverse may damage the components WHAT'S IN THE PACKAGE 1pcs x DC-DC Adjustable Step-down Power Supply Module (assembled) 1set x Clear Enclosure
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