LED: XM-L2
BIN: UNKNOWN 
ESTIMATE: Cool white 

You can choose whether to purchase these LEDs on a 16mm or 20mm MCPCB.

These are LEDs which have been salvaged from other flashlights and projects then reflowed onto direct-thermal-path copper MCPCBs.  Most of these have either never been used or have seen very little use.  The color and flux bins which are known will be identified as such, those that are not known will simply be identified as emitter type and approximate color range.  

All LEDs are tested before shipment.