Here is accurate information.
I own both TruckLite headlamps and JW Speaker headlamps and fogs. I have the TLs on the JK and the four Speakers on my TJ.
JKs and TJs are wired the same. Same connection, same output. There is no such thing as a mod for these. The only thing that is an actual issue is the pulse width modulation system used on JKs that cause LED lamps to flicker to varying degrees from JK to JK. (Mine just barely flicker.) The TJ does not have this issue. There are no adapters, no mods, nothing. Plug them in. That is it. Either brand runs directly off the stock wiring and power.
Here are my personal experiences with both...
JW Speaker 8700 headlamps
Very cool looking. Emit a lot of light that is very intense and white. Has a rainbow cone on the road in front of the vehicle where, at the edge of the cone is a dark patch directly in front of the vehicle. Very difficult to aim properly. High beams make next to zero difference. If others tell you differently it is because they do not want to make their über costly lights look like anything other than a modern miracle. I am telling you that I and several others on this board think they are a waste of money. Do not get them. Very nice, but that is a lot of coin for no high beams.
JW Speaker 6150 fog lights
Costly as hell for fog lamps. Worth it. Excellent pattern for FOG conditions. Lousy if you are one of those fools who use fogs for extra driving lights. They are FOG LIGHTS and if used properly they are worth the money. And they look badass. ;-)
TruckLites
Excellent, clear pattern. No real rainbow effect. No dead spot in front of the vehicle. Clear, bright, intense white light with a hard cutoff line where it needs to go. Very easy to aim. Excellent, usable high beams. Excellent purchase worth every penny I spent on them. Amazing improvement.
The Speakers, while excellent and almost as good as the TruckLites, just cost too damned much money for what you get. Sorry, Speaker Co. Lower your prices or improve your crappy, useless high beam pattern. I expected at least TruckLite-level illumination and pattern quality since your product costs like 50% more. Trucklites win, hands down, in my opinion.
The JW Speaker fogs are excellent, however. But they are also costly. Beware, you might think you are getting a deal online somewhere, but they sell these guys singly as well as in pairs. Make sure your deal is not actually just one light like what happened to me with Quadratec.
I have zero experience with the Quadratec product or the NAPA LEDs. (I do not find actual TruckLites anywhere on NAPA's site. I find some products made by TruckLite and some NAPA-branded LEDs. That is it.
I would allow others to be the guinea pigs for the Quadratec and NAPA lights. If you cannot afford the TruckLites right now I would wait. If you are interested and not disgusted by the prohibitive price then save and get the real thing. These LEDs are still too expensive to drop $300 on a set that you know nothing about. The real TruckLites are not that much more expensive. Or I would do one of the popular Hella options, which require some work to the Jeep, I think.
TruckLites have been around for awhile now. They are hugely popular in the JK forums. I have so far read of only a couple of failures. Never any color mismatches. The ones NAPA sells are NOT TruckLites as the TL company spent a lot of R&D money specifically on the color output. They do not make stuff like that at all. Look-alikes are not always rebranded stuff. That generally happens with cheap Chinese-made junk. TruckLite is not in the business of selling cheap knock-offs of their own product. Sorry, it is just not true.
If you want to know more about them, search the JK forums here. There are tons of threads on them and on the JW Speaker 8700s.
Good luck, whatever you end up getting. If you get the NAPA ones do not be surprised if they do not match color or output. And who knows about the Quadratec ones? They *might* end up being great. Or not.