They don't make a 3500K version of the CR6, just 2700. Are you sure you don't mean LR6, which is available in both colors?

I'm in a room illuminated by Cree CR6 lights as I write, and really like them. Excellent color rendering, incredibly efficient and long-lasting, and nice looking (many LED floodlamps look like showerheads and glare in your eyes badly if you look up at them; but these are nicely diffused). The 2700K color looks exactly like incandescent lamps. I also like that they turn on immediately, unlike some LEDs that take a full second to light up.

The CR6 can be dimmed down to 5% (compared to 20% for the more expensive but brighter LR6), but I haven't had a chance to use these in a dimming application. They're not super-bright, but they're equivalent to a common 65w BR30 incandescent floodlamp in brightness. When comparing cost vs. halogen lamps, note that the CR6 and LR6 include their own baffle trim, a $10-$15 item that you'd have to buy separately for each halogen bulb.

Thx very much for the response Lee. My mistake on the 3500k point. Glad to hear you like them. Since I first posted this my GC is recommending I go with MR-16 set up for halogen bulbs, and then if I like, I can simply swap out the halogens for LED. This confused me as I thought it was a completely different set up and housing for LED. Now Im wondering if these MR-16 LEDs are as effective? Any thoughts from the pros here?

Love ours ... the light tone is beautiful and we can now light our kitchen fully with the less than 1/10 of what we used to use.

I have been using MR16 LED in my kitchen for one year. I think it is effective. And I love warm white, ��cause it feels cozy and comfortable when I am cooking. You may have a try.

Thx for info and thoughts. I think I'll give the MR-16 LED's a try.