This module is not BUCK.
Make use of imported integrated switch ultra-thin regulator module manufacturing process and synchronous rectification technology so as the conversion rate is more than 96%, what's more, calorific value is extremely low.
This module is poted by epoxy so it's waterproof, shockproof, moistureproof, anti-dust and flame retardant.
The module boasts of automatic protection function when over voltage, over current, over temperature and short circuit braking and restore normal work after the conditions.
Input Voltage: DC 8V ~ 22V
Output Voltage: 5V
Output Current: 3A Max
Operating Temperature: -40°C ~ +85°C
Length of in-out wire: 10cm Black
Size: 4.6 x 2.7 x 1.4cm
It can be used for LED car display, GPS, MP3, MP4 car DVD, hard disk player and the stereo.
It can't be used for iPhone, iPod, Tablet GPS navigation, Tachograph, USB speakers
20 x 12V to 5V dual USB DC charger converter module