DT-400 Flashlite? (Duh! The power button...Crisis managed)

I have had a Super Chief DCC system for almost three years now and I was looking thru the Manual last night and ran across the fact that my DT-400 has a built in flashlite. The diagram in the manual shows the Lite bulb on the end but nowhere does it show how to turn it on and off (that I saw anyway). Something so simple but I can’t figure it out. Maybe someone out there can help me out. I don’t really need it but it would be nice to be able to use it if need be. This certainly has the potential of being embarassing.
Terry

Edited to minimize the Embarassment!

I think ya just pu***he power button.

The power button turns it on and off.

Well just had a temporary brown out and lost the internet for awhile. Found an actual DT-400 manual and you folks are absolutely correct…The ole Power button. Thanks for your help. Who would ever thought a power button would turn on a lite??? Just kidding! Well now I can get on to more important stuff like finishing up my signalling system for turnout position.
Terry