BLF A6 Modding

I’m new to modding flashlights. I’d like to try it out. Can someone tell me in a nutshell what mods I can do and what I need to order? Is it things like changing the led on pcb, flashing the firmware…etc? I just received a Manker BLF A6 and heard that this flashlight is very mod friendly. By the looks from the parts that can be taken off the A6, it looks quite newbie friendly for modding.

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