Easy... Inova X1-V2... it even beats my surefire 6P
Smooth HAIII
Water tight O-rings and smooth threads
Brushed stainless head and reflector
Coated glass lens to protect the Nichia emitter
Heavy and solid feeling in the hand
Want durability?... I can't think of ANY other light that can withstand multiple water-flood and freeze/thaw cycles. I don't mean plop it in a glass of water and freze it... I mean open the tailcap, FILL it with water to the brim, cap it back up and freeze it with water inside. Repeat several times. I speculate that such treatment would kill most other lights.
To top it all off it will run for 9 hours in regulation... after that it will run for at least 8 more hours with reduced output.
I modded mine with a small copper plate in the tailcap to replace the stainless one. IMHO it really improves the responsiveness of the twist-cap, and reduces that spongy kind of feel.:thumbsup:
Its also made in USA and has a lifetime warranty.
truly amazing, all that for $20 brick & mortar available
:thumbsup: