Step Down Buck DC to DC LM2596 Converter Module + Voltmeter

Specification:

• With voltage meter display,voltage meter error of±0.1V, the range of 0~40V. (note: to ensure that the voltage meter accuracy, please make sure that the input voltage is 4.2V or more).
• Low light touch button switch measurement input or output voltage,and a light show is voltage measurement which road, and keep the last set, even if the power switch on again.
• Voltmeter fine-tuning: hold down the button about 1-2s into fine-tuning mode, can remove button on the calibration at this time. (please do not use standby function, usually).
• Low voltage meter can be closed,long press button closure voltmeter (minimum power loss).
• Input voltage:4.2~40v(input voltage must be higher than to the output voltage of more than 1v).
• Output voltage adjustable range1.25V~37V adjustable (input voltage must be higher than to the output voltage is more than 1V).
• Maximum output current can be as high as 3A,normal and stableworking current in 2A.
• Low the internal oscillation frequency, 150KHZ belong to the second generation of switch voltage regulator,low consumption, high efficiency.
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