Surefire 9N question

[konifans]

I have six Surefire 9Ns, one T3 Turbo head.
I found an interesting thing:
When I turn on the HO output, some of them have both HO and LO lamps on, and some of them only have the HO lamp on (LO lamp is off).
I am sure all lamps are working, and I have tried to clean the contacts...
Anyone knows why?
Thank you!

 

[325addict]

I have no idea, the only thing I know, is that on my like new 9N BOTH lamps are on when I select high output.

 

[lightfooted]

I have six Surefire 9Ns, one T3 Turbo head.
I found an interesting thing:
When I turn on the HO output, some of them have both HO and LO lamps on, and some of them only have the HO lamp on (LO lamp is off).
I am sure all lamps are working, and I have tried to clean the contacts...
Anyone knows why?
Thank you!

Did you check to make sure the LO lamps are working and not burned out?

 

[325addict]

Well, he said: "I am sure all lamps are working" so I think he did check....

Did you check to make sure the LO lamps are working and not burned out?