Yes, XP-E2's tested here (djozz): https://budgetlightforum.com/t/-/32354 and here (match): https://budgetlightforum.com/t/-/16621, they peak in the 2.45A range or so. After that, the lumens/throw drops off. I did a 2.8A XP-E2 once, and saw the output to be about the same as 2.45A, but lots of variations from LED to LED as djozz pointed out in his tests.