I've noticed there are a few parts that are inter-changable from one manufacturer to another .
Heads or tails that fit on each others lights or extra body tubes to make a AA a 2x AA.
I recently noticed the:
- Thrunite t30 head fits on the Olight I6 body and visa versa.
Gives it a rather interesting feel.
- Fenix Pd 20 body and a 4/sevens quark turbo 2 x head make a very short cool little light /Tactical quarks fit too but aren't interesting because it doesn't really change anything .
- Sk68 and a Saik 105 body makes it a 2x AA flood to throw light.
https://budgetlightforum.com/t/-/23930
Do you know of a few ?