Cree and Seoul make some high CRI LED's, but I'm not sure if they are also high temp. Apparently the phosphor technology has improved a whole bunch, because AFAIK it is still the same yellow phosphor over blue die. I know some of the newer stuff can put out 120+ lumens with a little over 3V and 400mA or so.
Oh, I wasn't thinking about that LED technology. They are UV LEDs which then excite a phosphor coat. So they are basically florescent bulbs, but with a diode junction instead of a discharge arc creating the ultraviolet light. With a good quality coat, they could indeed be high-CRI.
