A TN31mb (OSTS) might be close to what your looking for. It still has some spill - all non aspherical lights will - but its minimal. MUCH less than a K40, TN31, or other popular throwers. The light does a very impressive job of throwing a tight spot at a distance with minimal spill.
It’s not cheap, but it’s an excellent quality choice for a dedicated thrower.
Nah that only works on MTG2 (and similar designs - XB-D, XT-E) where the phosphor covers the entire substrate, XML/XPG only has phosphor over the square die itself. It's already as small as it can be.
It still gives a square beam (did it with a ZY-T13 and sold it to travish on LPF. Kept the reflector in and trimmed it to hold the lens in the perfect spot)
Reflector in just limits the spill, but it will always have a die projection with an aspheric lens
reflectors focus the light forward thus limiting spill. Take a reflector out of a light and try it; it will have a ton more spill than with a reflector
This combination will produce the most interesting projection of light you ever seen,
Beam will be like clouds on the sky which are pulling you into square hole
Especially if used with OP reflector.
Here is the beam (any idea why BLF system does not allow me direct insert of this picture? I only have "leave the page" option when try to insert picture, and when I click it it does not post anything)