Could we old LED, I had two sets from a decent vendor here that both sets slowly aged and brightness output went from great to... barely any light at all in intensity.

Went back to a factory bulbs although a HO type instead. To bad as I like LEDs, but my experience in mine for headlights at least they arent worth the hype.

I have a 2013 4R that I bought used.
Surprisingly, it has the brightest headlights I have ever seen on any vehicle ever. Cutoff is dramatic and both the low and high beam go on forever.

Assuming they are LED, haven't checked physically, but definitely will. I want to get these same bulbs in other vehicles. When I do I'll post the info here.

when i got my 2021 ORP everyone was flashing me non stop. I finally realized the previous owner adjusted the headlights with the cutoff over anyones roof line.

Great headlight performance is due more to good headlight design that better bulbs. For instance, if you have poor optical design - as some T4R's have - no matter what bulb you slap in there, the light still has to go through those lousy optics.

Also important is the fact that some bulbs work better in some headlights than others. I've personally seen some aftermarket bulbs work great in one particular application and terribly in others.

Well I can confirm that the issue was the bulbs not being fully seated in the sockets. I am not sure how them not being fully seated (they were only out maybe 1MM) caused it but after trimming down the tabs on the H9 bulbs and getting them locked into place the lights now look fantastic. I will be upgrading them to either full HID or LED, but for now they are doing great with the H9’s

If I could offer some advice, be careful with drop in HID's. Lots of cheap Chinese parts out there and with them comes the (very real) risk of degraded performance and failed components due to the increased complexity of the system.

As for drop in LEDs, although there are far better LED options than HID, there are actually an awful lot of poor choices with these. Stay away from the cheap eBay and Amazon crap. If you want truly improved lighting, a pair of $19.99 LED bulbs are just not going to do it.

If you want my 2cents, the H9 swap is about the best bang for the buck you're going to get. It's inexpensive, easy to do and actually results in better lighting. If you go the HID or LED route, you might get improved lighting. Then again, you might not. And you're going to spend a lot more money to find out.

Thanks for the head up! To be honest, after now getting them installed properly and running them a bit, they are so bright and offer a great cutoff, I will probably leave the H9's in there. Even when my brights flip on, it is only a light increase in lighting performance, so as you've said, I always prefer stock over modified equipment/electronics.