Photon freedom alternative?

[MascaratumB]

This light appeared in a thread some weeks ago :

https://www.amazon.com/Keychain-Rechargeable-Flashlight-Polymer-RovyVon/dp/B079SWPZZQ/ref=sr_1_1?ie=UTF8&qid=1523013476&sr=8-1&keywords=rovyvon

And this light (Ultratac K18mini) appeared in the suggestions below the one linked above:
https://www.amazon.com/UltraTac-Flashlight-Waterproof-Including-Rechargeable/dp/B079GT3K8C/ref=pd_sbs_469_5?\_encoding=UTF8&pd_rd_i=B079GT3K8C&pd_rd_r=4EFYXVVZV5W2BQMJ0Z1C&pd_rd_w=7Gzgp&pd_rd_wg=yGC6t&psc=1&refRID=4EFYXVVZV5W2BQMJ0Z1C

This thread has references to several keychain lights:

keychain flashlights list

Hello Can you please list all keychain FL that you know. To start: Nitecore TIP Nitecore TIP SS Nitecore Tube Nitecore TINI Mecarmy SGN7 Mecarmy SGN5 Mecarmy SGN3 Lumnitop Geek Astrolux K1 Acebeam UC15 Which FL arround 15 $ do you recommend? Thank you Kind regards

Within that, I linked some budget keychain lights as well: keychain flashlights list - #24 by MascaratumB

Now…it depends on how much you wanna spend and how big you want the light to be!
Hope this helps