Specifications:

• Input voltage: DC 4.5 ~ 40V.
  
• Output voltage: 5V (when the input voltage is between 6.5V ~ 40V).
  
• Output current: 2A.
  
• The voltmeter has automatic calibration function.
  
• With reverse connection protection.
  
• With overheat protection and short circuit protection.
  
• With USB power indicator light.
  
• High efficiency and low ripple.
  

Application:

Can be used on car, electric bike, motorcycle for voltage measurement and to charge phone, iPad, Mp3 etc.