I got my first set in 2022 and several months after the both slowly started to fail due to water ingress in the lights and corrosion of the contacts at the connectors. Chris sent me a replacement set last year and I installed them Sept 2023. Had the car up on my lift to do an oil change today and behold, the driver's side has water in it again with a small section no longer working near the bottom.
The car isn't winter driven and has had only 6000km put on it since I installed the replacement units. This is getting ridiculous - especially considering what I paid for them. With him now going through personal stuff I guess there's no point in even trying to contact him for yet another replacement set. I even made sure to add some extra sealant at the back and where the harness goes into the housing. I had some extra PRC Aircraft Fuel Tank Sealant left in my toolbox so I used that. I have no idea how the water is getting in there. It's not like I'm holding a power washer nozzle an inch away from it when washing the car.
I don't see how the eBay version could be any worse than this leaking crap I have now. Only difference I guess is the eBay ones aren't switchbacks unless someone knows of some that actually are.
I'm using a headlight breakout harness so I don't have to cut into the factory harness. I'll probably try the ones from ebay and integrate them into my existing wiring configuration.
Needless to say that I'm not impressed at all with these CK71's. They look great; for the short time they last. Right now getting a third set appears to be a long shot.