Thank you very much. Could you help me considering this model,
It use 4*CR123, they are in series. So it's a bit long. I think may be 190mm.
The same diameter to fit your flashlight mount.
Tail push switch.
The output can be more than 500 Lumens.

That's what I am thinking about after reading your post.

If it's a one inch diameter tube then that's a big seller right there. Length is a little on the long side. Also can you manufacture a remote pressure tail switch.

More then 500 lumens is a good thing.... can you have it run on 500 lumens with three CR123As? It's a shorter run time but all of my stuff get's a hour max. The L2 drains really quick on full power.

3*CR123 will be a bit difficult. But a mouse-tail swtich is easy.
Could you give me a "max" head diameter you can accept?

Originally Posted by neoseikan

3*CR123 will be a bit difficult. But a mouse-tail swtich is easy.
Could you give me a "max" head diameter you can accept?

For the bulb assembly?

Yes. The diameter of that part. The head bezel.
The wider it is, the better throw ability we get.

Hi, people. Would you mind posting some photos I took for the light in dark night?

Originally Posted by neoseikan

Hi, people. Would you mind posting some photos I took for the light in dark night?

Go right ahead.....

I see no issue.

BTW, the fat guy in photos is not me. One of my partner engineers.

Nicely done.... pics of the light itself?