Chazzy hit the nail on the head.
Please take look at post #51 for djozz’s results at 0.5 through 8.0A w/ an older XM-L2: djozz - Crash-testing a XM-L2 and a XP-G2 on copper Sinkpads
New stock sounds like it’s much more fragile, but XM-L2 more than a few months old should survive around 6-7A DD or using a linear driver. [Buck drivers can produce problematic spikes in the output and blow LEDs at that current. Proceed with caution w/ buck drivers.]