Headlight on Tender and Engine ?

[JOBI and MARK]

How do you turn the headlight on or off, or check if it is working ?

[Cascade Northern]

What locomotive do you have?

[the Bach-man]

Dear Jobi,
If you have a Ten Wheeler, the tender backup light is cosmetic only. The headlight comes on when power is applied to the track.
Have fun!
the Bach-man

[Barry BBT]

Dear Bach man,

Lest you forget, the 10th ANNIES with tender lights are not just cosmetic, but light only when the loco goes in reverse.

Barry - BBT

[the Bach-man]

Thanks, Barry,
I did forget...
the Bach-man