I had same issue. I adjust down by 1 full turn and no one flashes me, now. I suggest marking the screws with white-out to better track your adjustment.
By the way, “down” adjustment is counterclockwise on the set screw.
There’s a lot more to the factory LEDs than the bulbs. The housings are designed to cast the light. No doubt your $5 bulbs look bright, but you’re not getting anywhere close to the factory LED output.
Maybe not as bright as the factory ones (since no one is flashing their brights at me when I accidentally leave my brights on), but they are a noticeable improvement over the regular bulbs and for a cost of $9 instead of $700, I consider it definitely worth it. If they are 50% of the difference between the base stock bulbs and the factory LED bulbs and only 1.3% the price, that's a good deal. It would be interesting to take a light meter and do a side by side comparison between the factory LED bulbs and these replacement bulbs. I don't think that they are as bright as some of the HID bulbs that I've had in other cars over the years, but they're acceptable. But you have to remember, I've also owned cars that only had 6V electrical systems, so maybe I'm not that picky as some of these youngsters who have been spoiled by the modern lighting systems.
There's plenty of choices on eBay... You just need to lookup the bulb types that are used on your vehicle and do a bit of searching on eBay... Sylvania has a bulb lookup page that has the JL's bulbs and I determined the following bulb numbers:
