How much do you have invested in you favorite most used light ?

I'm glad you asked, because that's an easy one:

You can't.

Tank007 always in my pocket. Beat up. Scratched up. Dropped, tossed, lost, found and daily user.

The Eagletac D25A clicky is my EDC as I don't like big stuff in my pockets. As much as I hot rod other lights, I EDC a completely stock unit that maxes out at 120 lumens with an eneloop. I lost my first one while trout fishing this summer and bought another without hesitation.

The Tank 007 E18 is my most used light now (was between 15-20 dollar).

The Ultrafire UF-T50 is the second most used, it was about 25 dollar.
I like the side switch, and it is compact for a 18650 flashlight.

[quote=raccoon city]

I'm glad you asked, because that's an easy one:

You can't.

[/quote]

That would either be the CNQ Zoomy Host with Nichia 219C, Ahorton lens and Qlite driver stacked to 12 x 7135,
Or else my key ring Smiling Shark SS-5039 with a pill cut from a copper tube soldered to a direct thermal star, an Efest 10440 and a BLF Tiny 10 driver with 3 x 7135. The firmware is from a two group 105c.