I'm considering replacing the lights in my basement, which currently has 6" recessed, IC-rated can lights, and 9.5" joist depth. I've seen wafer LEDs in a lot of videos, but I'm unsure if they're right for my setup. I'm thinking of swapping the existing 6" housings for 4" ones to save space for insulation above. One of my concerns about wafer LEDs is that they seem to dim over time. Although they're rated for about 50,000 hours, I heard they may lose brightness, only hitting around 70% of their original output by the time they fail. I want consistent lighting, so the thought of waiting until they die to replace them worries me.
Besides insulation, I plan to install Sonapan acoustic boards and two layers of 5/8" fire-rated drywall to soundproof the ceiling. While wafer LEDs would make installation easier, I'm apprehensive about the potential hassle if the connectors change in a few years, making it difficult to swap them out. Can I expect the junction box and LED connector for wafer lights to remain consistent over decades, allowing for easy replacements? What do you think is the best option here?
4 Answers
One downside to wafer lights is that they’re not recessed, which can create visible bright spots on your ceiling. Just something to keep in mind!
I say go for the wafer LEDs! Even if the junction box and connector change, it should be pretty straightforward to swap both out later on. Regarding your dimming concern, it's easy to just replace a wafer LED when it starts dimming—no need to wait for it to die completely!
We installed wafer LEDs in our finished basement and have been really happy with them. We bought a few extras of the same brand to have on hand for replacements. So far, we haven't had to change any, and they get used for about 8 hours each day!
Honestly, I think it might be better to skip overhead lights altogether and just use lamps throughout the room. This way, you can still control lights with switches by having switched outlets. It gives you flexibility and a cozy vibe!

They do sell recessed wafer lights which might help with that issue. Worth checking out!