Description:
100% Brand new and high quality!
This module has short circuit protection
DIY Mobile Power Supply, 5V output for charging Phone, MP3, MP4, etc.

Specifications:
Input voltage: 6V-40V
Output voltage: 5V
Output current: 3A
Switching frequency: 150KHZ
Conversion efficiency: 92%
Working temperature: -40 to +85 degree Centigrade
Load capacity: Maximum output 3A (with two phones simultaneously)
Scope: mobile power, mobile phones, flat-panel powered devices USB5V
Color: Red
Size: 59mm x 21mm x 17mm/2.3 x 0.8 x 0.7inch

Package includes:
5 x Step-down module