QLT Power QDC1S-0512S is a DC-DC converter module that is rated at 12V output, 5V input with a maximum current rating of 1.2A. The module size is 0.86 by 1.13 inches (22.0 x 28.6mm). It features short circuit, overload, overvoltage, and over temperature protection. The module has a huge variety of applications such as powering controllers, relays, and other equipment that require 12v input.