I had an A&P rewire my cigar lighter circuit and install a new socket on my C-150H. Cheap and easy. It's protected with a fuse. I'm pretty sure it's a 10 A fuse. Love having 14 V ship power available for such things as portable ADS-B In, iPhone, etc. I also use it to power an inexpensive volt meter that gives accurate readings, which provides excellent information about the health of the electrical system in addition to existing ammeter.