He mentioned they were LED so I am thinking they are not the Normal 55 watt incandescent. We will let him speak as to the wattage, but I am thinking since he blew the 60 amp main fuse first, and mentioned wire heating. (before the main blew) that those light are shorted. That would be my guess. Now that he is behind the 7.5 amp combination fuse of course thankfully that is what blew. All guesses of course at this time.. Chris if you have the VOM . get it out and put it on ohms, and short the leads, and take a reading. It may show 0 ohms. or something like .1 ohms. at any rate note the reading, and consider that it is a dead short. Now ohm the leads to the lamps one at a time, totally disconnected from the tractor.. Both directions..(reverse the leads.) and tell us what you get. Also ohm both leads to the case of the lamp. perhaps inside one of the lamps the positive voltage input is touching the case, making it hot, and since it is likely grounded to the chassis of the tractor....poof..... let us know.
James K0UA
James K0UA