3A Adjustable LCD Digital Step-down Power Supply Module DC 5-23V To 0-16.5V Voltage Current tester voltmeter Buck converter

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Descrtion: 1, Beautifully acrylic Enclosure. 2, 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. 3, Using on adjustable voltage, left on to reduce the voltage, the right on to increasing voltage. pre on one time can adjust 0.04V voltage, pre and hold more than 1 second to quickly adjust voltage. Calibration Mothod: Power-off status, pre and hold the left on acce the power, the display starts flashing, release the left on. using multimeter measured the output terminal voltage, if the measured voltage is greater than 5V, pre the left on reduced the voltage to 5V; if the voltage is le than 5V, pre the right on to increase the voltage to 5V. When the LCD display voltage of 5V(sometimes it shows 4.99V), turn off the power, the calibration is complete. Performance: Input Voltage: 5~23V, Max 23V, recommended to use within 20V Input voltage must be higher than the output voltage 1V above Please check the input positive and negative polarity before connecting, reverse may damage the components 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, le than 10mA will not be displayed. Peak Current: 3A (Recommended use in 2A, accuracy of 1%, the minimum display 0.01A, le than 10mA will not be displayed.) Conversion Efficiency: 95% Load Regulation S(I) ≤0.8% Voltage Regulation S(U) ≤0.8% Size: 62 x 44 x 18mm Weight: 45g Packing List: （As you choose）1pcs x DC Adjustable Step-down Power Supply Module or 1 set power supply module + transparent acrylic case

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