Just like to share my experience with this BEC. I dont have a 100% understanding on these BEC. But I know that heat kill mine...along with the $100 servo. I mounted mine right next to my Mamba, I guess the heat from the mamba transferred onto the BEC. Next thing i know the input and output voltages were the same. And since I was running a 5s A123 cells (17.6volt nominal), it was enought to kill the servo and the fans that was running of it. That servo smells like burn toast now.