Copper PCB 16mm for Cree XM-L, XM-L2, and XH-P 50 LED emitters!!!
Armytek Viking Pro v2.5 XM-L2 LED Flashlight- 850 lumen
Amazon.com: KQO Original 10W XM-L2 T6 White 6500K LED Lamp Light Emitter Chip DIY with 20mm Star PCB Base for Flashlights (10W XM-L2 T6) : Industrial & Scientific
Cree XM-L2 XML2 Led Emitter Lamp Light Cold White 8000K White 6500K Netural White 4500K Warm White 3000K 32MM/25MM/20MM/16MM/14MM/12MM White/Black PCB - Kiwi Lighting
Cree Xlamp Xm-l2 Xml2 T6 10w Cool White 6500k High Power Led Light Emitter Diode For Flashlight On 16mm Black Or White Pcb - Light Beads - AliExpress
Cree XP-L V6 2C led, tested against XM-L2 T6 3C, edit23/7: I repeated the test and measured a dedomed XP-L - Flashlight Modding and DIY Parts - BudgetLightForum.com
New - Marine Flush Mount LED POD Light: 40w CREE XM-L2 - Diffused: Black Oak LED Pro Series 2.0 - BLACK OAK LED
CREE XM-L2 U4 1A LED on Noctigon 20mm MCPCB
DV22 2 x Cree XM-L2 U3 White 6500K and Cree XP-E Red 2000 Lumens