After 7 minutes stabilize to 11% brightness increase and the current draw is with 33.3% more.
The higher amps should be theoretically more useful in dedicated throwers since they concentrate the light more. On a floodier light a 100 lumen gain will be harder to detect by the eye.
Oh...ok, and the body tube is definitely more massive (relative to a single XM-L) to soak up the heat as well as has at least 3X more surface area. Coz actually i really wanted to ask why the drop isn't as much, my P60s dive like there is no tomorrow due to heat.
And btw, would you kindly share your XR-E 0.5A - 1.9A video as well? I really like how the output scales from 1A to 1.5A. I haven't done any experimental recordings but from "feeling and playing around" I knew that generally it is ok to drive to about 1.4-1.5A even for a P60 size light. I have a Dereelight DBS v3 aspheric that is driven to about 1.5A. Thanks bro, all your effort is much appreciated!