Turning off a lumenok?

How do I do it? What tools are needed?

None, you just pull on it til it goes off.

OK, good. Some youtube video had me believing I needed a tool for it.

If you have a nocturnal then you have to use a knife or paperclip to slide out the battery connector to turn it off.

Pocketknife here

I use a broadhead point to turn off nocturnals. Not sure about Lumenok though

yep, learned this at an early age.