Lumzoo EOSLAMP SP11-S XPG2 S4 Mini LED Keychain Flashlight With Tritium Tube
Use coupon code 0fba15 to lower already 40% off price to only $12.23 (original price was $39.99)
According to reviews this light has very high finish quality and it’s equipped with tritium vial (GTLS: Gaseous Tritium Light Source doesn’t need sun exposure to light for ~10 years continuously - after that time it will be twice as dim).
One thing very different from all the other twist AAA/10440 lights is that in order to turn it on you need to loosen the head, tightening the head turns it off.
This design is better for EDC keychain duty as the head won’t get lost because it’s always tightened in off position, also it will not turn on accidentally.