"Upgradable" Drivers: Where to find them? If anywhere ...

Flashlight Modding and DIY Parts
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Hum, can you please tell me what is it ?
I am not savy in these matters :frowning:

Also would that be enough to upgrade all the drivers/lights I mentioned above, or only some of them?

Thanks in advance!!

EDIT: not sure if it matters, but what I have is this:

Imgur