Well then... first time this week. Thanks.
Nice way to see what a future light might look like.
Hmmm, first time this week that you got away from the wife?
I recall, once, that I tried adding beams together. The end of the parking lot was about 100 yards away. I had two lights, one, a 2AA rayovac indestructible. Ever hear of it?
and a no-name 3AAA with a small emitter in a relatively deep reflector. Neither one did a particularly good job of lighting the deer at the end of the lot, but when both hit it, I could tell that lumens, or CD are additive. I don't know if it would be a straight line plot, you may need someone like TEEJ to be able to tell us that, and if not, I don't know how to calculate how different beams, and different CDs add up, but I am sure that someone smarter than me can come up with a mathematical method.