Runtime graphs are overrated, if you use a 4A cell and the light runs on 8, max 30 minutes, that is without stepdown ofcourse
So with stepdown a little longer
Runtime graphs are very useful to see stepdowns. I can do maths and calculate that a 4A cell would run for 30 min under a 8A discharge rate, but I need to see a runtime graph to know the max sustained lumens from a flashlight and how efficient the driver is
And I am hoping that it really does not spill anywhere near that much. I have plenty of lights that have a nice flood and am looking for a true thrower.
Maybe I really do need to be looking at lights with aspheric lenses, though the good ones seem to be much higher priced.
There really aren’t any aspheric throwers that can throw farther than the K1. The only one I know of is the Microfire H20. The LEP flashlights use aspheric lens but the tint shift is so bad and the CRI is so poor that you can’t really make out what it illuminates. I own the W30vn CW, W30vn HICRI and W10G2vn CW and while they are fun to play with, they are really more toy than tool.
Texas Ace is testing an aspheric mod with the BLF GT. That would make for a very useful no-spill light.
I don’t have any problem making out what I’m illuminating with my W30 because of tint or CRI, but the beam is so narrow it relegates it to the “toy” pile.