Wow, it went from all this talk of 150 being critically needed to 150 being too low on the high levels and should be put down to medium!?
There really is very little difference between those levels in terms of brightness but in terms of usability, the 150 lumens for 11 hours is going to be much more versatile than 3.9 hours with 330 lumens.
I don't know what everyone is using their headlamps for; for most I would assume close to short-medium range activities; 150 lumens is the sweet spot for working right in front of you and up to 10-15 metres I believe. If you want more light, I would also assume you would want MUCH more light.
I have never said to myself 'oooh, I want a very small and barely noticeable increase in brightness along with more heat and about a third of the runtime.'
With all that being said, and that is only my opinion, many will agree and many probably wont. It's a moot point anyway. The 150 lumen level was a necessity.
What do I think about 1020 lumens? It's cool, don't get me wrong, that we can have the most powerful headlamp (within reason; I'm looking at Lupine <3 ) and amazing UI, but I really don't see 1020 lumen level being used for more than a minute or two deep in a cave to show off or to light up some abandoned buildings and warehouses, again only briefly.
In a perfect world, we could program both levels and I do believe it will come to that; maybe the Mk3? Just choose the level you want to configure and then do the double clicks from there until you enter programming mode. That way you could have the two H levels set the same to always come on in the same mode.
Eventually, we may even see full programmability of all the levels to whatever you want. Then the people who complain about it taking way too long (LOL!!) or frustrating to have to double click for a lower level with longer runtime will be happy they can set a medium level as the default one-click-from-off setting
We'll never ever all be happy but I hope we can be happy in knowing we have something that is almost perfect!
Just think of those poor souls at work or out right now doing something like walking the dog with one of those AAA Energizer headlamps! We should be thankful that we have the Mk2 to look forwards to and hope that ZL will listen and learn from this and aim to make the Mk3 even better!!