I just bought these about a month ago and finally got around to installing them the other day.
Let me start out by saying that the bar over the license plate w/ the lights and trunk handle has been the single largest recurring pain-in-the-ass-part to deal with on the entire car over my past 8 years of ownership. I've probably had to remove it 6 or 7 times now.
Basically it started with inoperable lights due to corrosion issues on the bulb holder tabs. I initially fixed that with some sand paper and some dielectric grease to try and prevent further corrosion.
After about a year the actual wiring to the bulb holder tabs also started corroding and the housings above each light were melted. I rewired everything using the existing bulb tabs and reinforced the tab mounting with screws.
After that I think it was more heat and wire corrosion issues that finally pushed me to replace the tabs that mount the festoon type bulbs and replace with spade connectors and direct wire LED type bulbs.
The LED bulbs I've dealt with are pretty shitty in terms of resistance to moisture, so I've gone though a few sets that have failed due to water collecting inside the bulb housing near the lenses.
On this last effort to finally fix this issue once and for all, I completely replaced all the wiring for the lights one more time inside the bar to replace any damaged sections from heat and water related corrosion. I also added some new waterproof weatherseal to prevent water from entering the bulb housings.
For the LED bulbs, I disassembled each from the clear lens and completely coated the circuit boards in clear epoxy to waterproof it from the elements. I direct wired spade terminals to attach to the LED panels so I can easily replace them if they decide to fail again. I also globbed on a bunch of dielectric grease at the terminals to prevent corrosion there.
As far as the light output goes on this recent batch from amazon, they are super bright (almost too bright for my taste) but at this point I just want them to work.