I have yet to install any lights, had some trouble picking them out, and quite honestly, many are too expensive. I have also had trouble deciding on LED's or halogens.
Particularly since I cannot see them in person. I am kind of leaning towards a Hella fog lamp set up. I put a set of 500's on my CJ many years ago and they have not let me down. they came with the relay, proper guage wire and switch kit as well. Although they are fog lamps, I mostly use them to light my way through the rural deer country. I think they would be adequate for tractor use dueto the output, but what I really like is the wide angled coverage they throw, which is really why I put them on the Jeep in the first place.
Just order a bro-tek package..belly pans, thumb, BH claw and trencher, and brush fork for the loader. So that should change my usage considerably.