Best pencil beam with no spill ?

[musicmagic]

@NeilP

Jax Z-1 host: I have seen on Mountain Electronics, but I see it is too big now I look. I want no thicker body than at max 18650 single cell diameter, so 20-24mm max dimeter. that Jax is much bigger.

Is there any specific reason why you are against a large diameter light?

edit: try this