I have little use for the brightness conversation when talking about AAA lights. It always leads to disappointment because we all have bigger lights that are way brighter.
So, if you want something that is boringly reliable and infinitely better than no light at all, then I can vouch for Fenix E01. Fenix has other AAA lights that are brighter, but this is the AAA light I have. I actually don't want my AAA light to be too bright because someone is bound to borrow the light at some point, keep it cranked on to the max, and quickly drain the battery. I just want my AAA light to work, and the E01 just works.
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If you're reading this, it's too late.