12ZM LA, How to tell the difference?

I have a 12ZM and was wondering if there is a way to tell what LA is in it by looking at the LA? Thanks

-Mike

How to spot an N62 (500Lu/12min)

It will be black collar. No etching of any kind. The bulb tip is not frosted.
It will have a outer spring contact that is short compared to the inner spring contact as is the way with "Classic" type lamps assemblies.

Al

Thanks... any way to tell which output LA it is, or does the 12ZM only use one type of bulb?

-Mike

There are three Lamp Assemblies that can be powered by the four SF123As of the 12PM/ZM or M4.

MN60 225Lu/60min
MN61 350Lu/20min
N62 500/12min (subject to "thermal shutdown" if used constant-on)

The MN60/61 are specifically designed for the Millennium Series TurboHead but do fit and function in the 12PM (etc)
These lamps are black collar and etched. The bulbs have frosted tips and the sides of the bulb are quite long, straight and fat (being almost the width of the neck).

The N62 was designed for the 12PM/ZM (etc) and due to the difference in length of the outer spring contact compared to the Millennium TurboHead Lamps, may not function well when used on a WeaponLight.
The N62 is the only black collar Lamp Assembly that is not etched. The bulb does not have a frosted tip.

Al

Thank you much Al!

-Mike