I never found another source for these, and presumably you won't be buying more. Although it was lunch time when I stopped in a couple months ago, a few of you did get to see the super-bright LED ring. I'll probably make an Instructable out of that project and I'll be pointing people here to buy the parts, so you may want to make sure you can get more if nothing else (alternative: reveal your secret source!)

These are really neat little LED's. Very bright and can be powered briefly by a small 3.7volt lithium cell. They must be soldered to a surface that will sink heat quickly like a PC board with fairly heavy cladding if using them this way or they will melt the solder holding them down. A proper LED driver should be used or a resistor at minimum to keep the current below 400mA or heat willl be a problem. A cluster of these will eat up some excess current and 3 or 4 produce quite a bit of bright white light. Dazzling really. Defiletely the smallest high powered LED. For the price there's nothing I've seen especially in such a small package that outputs as much light until you get to the 3 watt class.