surge brakes are pretty rare anymore and are generally only on smaller utility trailers and popups.
surge brakes don't require a B.C.
Prodigy is the best selling and recommended B.C. on the market.
i have a question. your pic shows a truck and trailer.
have you been towing your trailer without a brake controller?
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity