The 7-Way, on its own, will not engage electric brakes. You would need to add a brake controller. I would suggest a proportional unit as it will detect how hard you are braking in the truck and adjust the braking power on the trailer to match. It will yield a smoother braking system.
bona fide (not comparable) 1  In good faith. 2  Genuine; not counterfeit.
Learner's definition of BONA FIDES. [plural] formal. : evidence which shows that what you have said about yourself is true : evidence showing that you deserve a position or that you can be trusted. She has worked hard to establish her bona fides with the company. [=to show the company that she can be trusted]