5pcs DC 3.5- 12V To DC 1.2-24V DC-DC USB Step UP / Down Power Supply Module Adjustable Boost Buck Co

Description: ? USB boost/buck power supply module, powered by USB, adjust potentiometer to get the required voltage. ? Features: ? 1>.One button to turn off the output; 2>.Supply ON/OFF display screen; 3>.Support low power mode; 4>.Support sleep mode; 5>.Support both standard USB and Micro USB and pads input voltage; 6>.Potentiometer with rotating handle. ? Parameters: ? 1>.Input voltage: DC 3.5-12V; 2>.Output voltage:DC 1.2-24V; 3>.Output power: ? ? ?Input 1.2-2V,output power within 2W; ? ? ?Input 2V-20V,output power within 3W; ? ? ?Input 20V-24V,output power with in 2.5W; 4>.Display:3Bit digital tube display; 5>.Size:80*20*14mm. ? Use steps: ? 1>.Input voltage from Standard USB or Micro USB or a??VIN+a?? and a??VIN-a??; 2>.Turn ON display screen; 3>.Adjust potentiometer to get the required voltage; 4>.Connect load. ? Application: ? 1>.Ordinary power supply; 2>.Battery charger; 3>.LED drive power; 4>.Instrument voltage display; 5>.Test meter; 6>.Circuit test; 7>.Power conversion. ? Please Note: ? It is not a high power supply, please use it within the power range.? ? Package Included: ? 5 x USB Boost/Buck Power Supply Module