I have the 1450's installed.
They do have the bulb shield factory installed. I have not opened them up and removed these shields to " make it SOOO much brighter" like many of the foolish reviewers on Amazon, who then complain that they leak.
The light pattern is wide. Mine are not properly mounted as fog lights as they are not much lower than my 6054 sealed beams.
I use them for low speed driving when I want to see off to the sides, below my low beams, or when I don't want or need my low beams annoying other drivers, neighbors, pedestrians. My sealed beams 6054's are now on relays with 12awg harness and are significantly brighter than before.
I never drive with the hella's on in addition to the low/high beams. One or the other, but they are on a separate switch and I could.
The switch provided with the hella's is a joke. I have a different lighted switch to trigger the provided relay. I used to run full fog light current through this same switch, but now it just triggers the relay. Those other lights were some hideous Pep boys specials which leaked, had the reflector peel off and burn out within 2 years. These Hellas are significantly better than those were in light spread and output. They have been installed for over 2 years now. No issues with them.