It may very well now - I don't know. I tested an early release version of this light. Over time, I have noticed that foursevens has added that step-down feature to many of their lights. The X7 may not need it, as it is not particularly heavily-driven. Check with them to see if it currently comes with that feature.Selfbuilt, from the graphs it looks like the X7 doesn't have the regulated drop off after ~3mins like the smaller lights using XM-L emitters. Does the larger head dissipate heat enough to maintain full output of the emitter over extended runtimes?