Features:
　
Brand new and high quality.
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 effiency and low ripple.
Application: can be used on car, electric bike, motorcycle for voltage measurement and to charge phone, Mp3 etc. (Not fit for Apple products like iPhone, iPad.)
Size: 6cm x 2cm.
　
Package Contents:
　
●1x Step down module