Once on in any mode it just takes a quick press to change modes.
I am not suggesting anyone not get one but just know that they can turn on even of locked in your pocket.
The TUP on the other hand can not as I can not get one in my pocket in the first place!
Got it. I think I was misunderstanding you. I meant that if in the 30 sec turnoff mode, it would just turn off.
Anyway, I now have the Acebeam UC 15 which has a full lockout and is "almost" a pocket light. Definitely not a key chain light. Lots of fun though with the red and uv lights and lights up the whole backyard with 2-10440s. Carry it on a dangler in front pocket and works quite well.
On the Nitecore subject, my TUBE has full lockout. The earlier ones did not. Quality seems to be better on the newer ones. That is a real keychain light