LM2596 LM2596S power module + LED Voltmeter DC-DC adjustable step-down power supply module with digital display

• With voltage meter display; voltage meter error of ±0.1V; the range among 0~40V. (note: to ensure the voltage meter accuracy, please make sure that the input voltage is 4.2V or more).
• Voltage meter can be closed by long pressing button(minimum power loss).
• The range of input voltage is 4.2~40V and output voltage is 1.25V~37V, which are continuously adjustable. (The input voltage must 1V higher than output voltage)
• Maximum output current can be as high as 3A, but normal and stable working current is 2A.
• Use 150KHZ internal oscillation frequency, which is belong to the second generation of switch voltage regulator with low consumption and high efficiency