Electrical protection ??

I'm hoping crackedback will chime in here soon. The fusible link acts like a slow blowing fuse, it'll absorb a high current spike for a bit longer than a fuse, which melts immediately after it's current has been exceeded(Harbor Freight fuses excluded). All our old Mopars had them from the factory. Slantsixdan is another excellent source of electrical information, if he's still around. He's also an expert on lights for our old Mopars. Try reaching out to either of these two gentlemen. They've helped me in the past.