Features The voltmeter resolution 0 1VThe voltmeter digital display range 0V 45VThe voltmeter input voltage range DC 4V 40VOutput voltage continuous adjustable 1 3V 37V Output current 2A Max 3A Size 65 x 35mmDescription With terminal blockOver heat protection and short circuit protection functionLED digital voltmeter tube it can adjustable accurate aimed at your multimeter Press the key S1 to let the display show the input or output voltage when the green led light it shows output the red show input Touch the button to switch the measurement input or output voltage and indicator light shows which voltage is being measured it can save the settings even if the power off and restart Using 150KHz internal oscillation frequency belonging to the second generation switching voltage regulator low power consumption and high efficiency Note To guarantee the accuracy of the voltmeter make sure the input voltage above 4V The input voltage must be 1 5V higher than the output voltage or 1 5V above Package included 5 x LM2596 DC DC 1 3V 37V 3A adjustable buck power module