LOL
Its also assuming that no one needs more lights than yourself.
For example, what if you need tactical UI for one aspect of your job, but a tactical UI would not be appropriate for another part?
What if you need one handed operation for one set of tasks, but would be better served by a control ring or other two handed UI for another?
What if you need a flood pattern for close up work, and a flood pattern for distant work, and also a throw pattern for distant work?
What if the distant work is best served by a wall of light, but you can't get enough light out at the distance you need if its handheld AND floody?
For example, lets say I need to search for survivors at ~ 400 yard ranges, perhaps along a river bank....I might perfer a TK70's floody beam at that range to cover more area at a time...over the SR90's tighter but brighter pattern.
If the same search has to reach 600 yards out, say across a ravine, or the river is wider, etc...I can't use the TK70, and I need the SR90's throw, even if the beam is smaller...at least it reaches.
If I need to take apart an HVAC system to look for evidence inside it, etc, I can't use the TK70 or SR90, I might want one light for general flood, and another to peer into small gaps w/o glaring on the surrounding parts, etc.
That's 4 lights right there, for a mere two tasks...and I didn't even get to what might work well on a pistol or AR15 or pump 12 ga, etc...
Or what might work to inspect a warehouse or rooms or a crawlspace, or to go camping or fishing.
So, to limit me to 4 lights is going to be - well, limiting. It would be IMPOSSIBLE for me to do as good a job with only 4 lights.
LOL - And we didn't even TOUCH on cell options or back-up purposes.
Telling a flashaholic to get by on a mere 4 light is like telling a mechanic that all he needs is 4 wrench sizes.
Now, of course, if you don't NEED lights, as in you just like them, and have only basic needs, sure, a single key chain light might suffice for real world duty...but everyone's needs are different. There is no magic number for lights, or wrenches, or sockets, etc.
If a mechanic could buy one adjustable wrench and do his job, he would not need one of those enormous tool chests...he has the tool chest because he knows he needs more wrenches, and, he knows that an adjustable wrench only works in some contexts.
:welcome: