I just looked up online about cree lights flickering. I have lived in my current house (11,000 sq feet over3 floors) since 2014. The house is a very faithful colonial reproduction from 1980. My wife and I did a thorough redo of the electrics, mechanicals, Windows, new cedar roof and cedar siding (where needed), paint, bathrooms... We had the entire house rewired and had had about 150 recessed lights in the house (bedroom, kitchen, all bedrooms, all closets, sun room, pantry, halls, laundry room all basement rooms) Redone in Cree 2700k BR30 65 watt bulbs (from reputable electrician). I did this because our past house (3200 sq foot over 4 floor) had many rooms with similar recessed lights I converted to Cree led (the exact same) in 2012. The lights in the old house DID NOT flicker when lights were at full brightness, but the old dimmers were a problem. So I went to Lutron dimmers for CFL and LED. There were no more issues. Well, due to this experience, all lights in new house started up on these led comparable dimmers. I have to be honest - I am SUPER DISAPPOINTED with CREE. I have had at least 20-30 Cree flickering lights in my house. At first I thought it was the rooms, because certain rooms flickered all the time - but, those rooms had a ton of lights. I have replaced them with the LOWES equivalent and have not had an issue. My office (family owned) converted over as well and my parents did. And we all did Cree. We ALL had flicker issues. Some are so bad, they go off for a while! When we switched over to the Lowes brand (only on flickering lights), no more problem. The strange thing is that the Cree completely integrated low profile units (not screw in, but lower profile lights we needed in our pantry that look the same once installed, but are half the installed depth) have all been great. I am almost certain it's a quality control issue. People who have old incandescent "high watt" dimmers - realize you are replacing old bulbs with new ones that demand 1/6 or less the power. The old dimmers don't control the low load properly and you will get flicker if you dim lights. But if you have led ready dimmers or a solid switch, and lights flicker... It's the bulb. I've tried everything and it was the bulb. The Cree's are supposedly the best - but I have had a problem with at least 30. Replacing them fixed issue and other cree's in same circuit and switch have been fine for a couple years. If you have similar issues and a good dimmer - it is not you or your house. It is the light bulb. Return it. I think the Cree's made in the past had better quality control. I asked homeowners of my past house if they ever had to replace one (they are all from 2011/12 - all Cree) and they say they are great.

That warranty void stamp is there for two reasons. 1) They want you to buy their own trims 2) They can't possibly test all trims out there and verify saftey/compatibility, so they CYA. Sorry, can't give you any specifics on CR6.

Hmm, it's rated 575 lumens and uses 10.5 watts. That's about 55 lumens per watt. That's showing some improvement, but it's still well below a good CF in efficacy - and it's quite a bit more costly. By comparison, the low mercury 12,000 hour Neolite retrofit Edison base CFs I've mentioned here before yield 72 lumens per watt and cost $4.50 each. Compared to those, the Crees use 32% more electricity for a given amount of light, and cost 3.8 times as much per average life hour - and 11 times as much per lumen-hour. Ouch. On the downside, the Neolite CFs aren't dimmable. Also, if you're married to downlights, the Cree may make better use of its lumens since they're all aimed downward.

CREE lights can be used for new construction too. The LR6 can fit into title 24 cans (with the GU24 base). I would go with the HD CR6 if you can use edison base lights. If you're subject to title 24 like laws, you need to use the GU24 base which is currently not available from HD. The other resellers (polar-ray) of CREE CR6 lights have a higher list price ($65), but the warranty period is longer.