ANSFI FL1 was never meant about flat regulated output. Far far from it.Not opposed to high lumens, but I absolutely detest the current marketing BS where they advertise "2000 lumen pocket light!!!" and then in the fine print far below, you find out it drops down to 400 or so after a minute.
It's ironic that the ANSI standard was meant to create transparency and accuracy to these ratings, but then manufacturers immediately realized they could take advantage of the short measurement time for output, and just have their lights take a huge step down after a minute or two but still market the light as a "2000" lumen light (or whatever) when in reality it's a 400 lumen light that happens to have a short burst mode.
Dang, I'm turning into the Clint Eastwood of flashlights......NOW GET OFF MY LAWN!!!
And you can't blame makers adhering to a standard if one exists.
Lets face it, your car doesn't make PEAK power all the time you drive it. It does it for a very small part of the rev band. And most modern cars then use torque limiting technology, so that as a rule cars only make PEAK power in higher gears and generally make a whole lot less in 1st & 2nd gear.