With a turn of a screw you will be able to convert your DC power up or down to a usable voltage. Now you can run the 12V lights from a 4S, 5S or even a 6S pack. Units are only good for up to 3A.
Input voltage: 3.2V-40V
Output voltage: 1.25V-35V
Output current: 3A(max)
Transfer efficiency:92%(max)
Switching Frequency:65KHz
Module Size: 43mm(length)*21mm(width)