There are some links for documentation of CREE XLamp LEDs below:
XLamp XR-E
XLamp XR-E - Binning and Labeling
XLamp XR-C
XLamp XR-C - Binning and Labeling
XLamp XR (colours)
XLamp XR - Binning and Labeling
XLamp XP-E
XLamp XP-C
XLamp XP-C - Binning and Labeling
XLamp MC-E
XLamp MC-E - Binning and Labeling
Before using of the XLamp LEDs we advise to get acquaint with manufacturer's aplication notes about usage and parameters of XLamp LEDs.
XLamp - Soldering and Handling
XLamp - Lifetime and Reliability
We also recommend to read our technical brochures (PL), where you can find many useful and practical information connected with LEDs technology.