The vision system is very sensitive.
Controler/lightbar and Brain (switchbox) have eprom in the that need to
be compatible. (f.e police,fire or gerenal version)
The brain of the vision has 1 eprom (set of 3 in total) but in the premium, with siren, it has 2. (set of 4 in total)
It's a beautiful light system
(the nicest of all lightbars in my opinion) but a very complicated one also
