What do you want in a weapon mounted flashlight?
What do you want as far as size and power from a flashlight? I think most people would always want the smallest and lightest flashlight that had a reasonable burn rate and was rechargeable. Rechargeable flashlights are of the future and anything that is mounted on a gun right will eventually not need battery replacement. It’s one of those things that you know when you monitor the economy or any industry. You have ideas and work towards them and if you have the right people you will be able to get to your goal much faster. I believe that Eotech gun sights will eventually have small solar panels on them that will charge the rechargeable batteries when not in use or while in use.
The same thing is going to happen for flashlights but considering how powerful some flashlights are it might be awhile before they are practical. I have been happy with just a Streamlight G2 LED flashlight on my M4 Carbines but for outdoor work I have been using the ATN Flashlights like the javelin or the ATN tactical light with 600 lumins. This thing is powerful and is something that you do to light up an area not just an individual target. They work well by issuing it to a tactical team member who’s job is to use the white light.