To give help the torch carry a better beam out to wear you are pointing torch too.
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To give help the torch carry a better beam out to wear you are pointing torch too.
If you want to columnate the light, look to replace the flat front lens with an aspheric lens. All that tinfoiling a tube will do is to cut off the spill from the beam, and leave the centre spot. This spot will be no brighter. (you can easily check with a lux meter at a fixed distance)
I'd love to be proven wrong, but would need to see fact based evidence to back this up. Maybe we will see foiled tubes in front of 4WD spotties, and in front of the latest Audi's headlights;)
Light won't hit the back of the suppressor, which is a definite plus tho.