... On the back stand out the threads of the two "contact screws" from the two outlets. It is one small nut rotated (both were not firmly). Neither of which are covered! The problem is that there is a passage between the "+" so - foot contact the outlet, this thread with nut and logically the "+" - pole are! Depending on the installation location, it is possible that these screws to the body or other "mass" portions of the vehicle make contact and there is such a short circuit! Here, the provider must nachbesser necessarily! In the photo it is not visible.
So beware !!!
Because the processing as a whole is okay, the outlets are very stable, a fuse holder is fitted with glass tube fuse and ends each contain a "car-plug" or lug, there are three stars.