Depends on if you care about "originality". Fenders missing? LED's for sure, if you really want to see.
Fwiw, I haven't had good luck with a few NiLight products, had to return a light bar and a 6" pod light due to water intrusion / lens fogging up and couple strips of LEDs going out. Probably okay if not in wet conditions; I've been told by a few folks to make NiLights dependable, you have to add silicone to the seals because they're not as water resistant as they claim.
I've had good luck with Rigid pods and bars so far, one set a few years old and hit with pressure washers many times with no issues, but they're not cheap. IP68, pressure equalization vents, powder coated instead of painted, etc, so you pay for the higher quality.
Just added Rigid flood pods to my tractor and they blow away the factory work lights by a long shot.
I only mention the above since you said you were more worried about functionality & durability.
Don't get me wrong, I still have some NiLights mounted on other pieces of equipment that don't see rain, and they are a good value in that sense, but ya get what ya pay for.
I hear ya, and I too was tempted by the low cost of the NiLights ... And please don't take this as me poo-poo'ing on them, as I'm sure they're a good fit for some (and perhaps I was just unlucky and had some with bad QC), but in my experience, paying a bit more for better quality is well worth it to me so I don't have to chase issues or warranty replacements & re-do work.Thanks this is exactly the type of feedback I was hoping for don’t mind spending extra for quality, within reason, my old man is 83 so he’s not going to be working much in the rain.
Also keep in mind, if you just want to replace OEM halogen bulbs with upgraded LEDs using your current lamp housings, that too may be an option without shelling out big bucks for full LED pods.I got some yellow/red marker lights from Amazon for one of my Ford tractors. They were relatively inexpensive, $22 ea., and were pretty solid lights for the price. I am going to replace the headlights on both tractors with some 64w LED Truck/Tractor work light that appears to be much brighter than the original sealed beam lights, according to the stats on the product. As I wrote this I went back and looked at the post AirOpsMgr had about the Rigid flood lights. I am going to check them out as the pictures show they are VERY bright.