Cars have two headlights
My eyesight in the dark is below average, so I understand the problem all to well.
I installed a H4 led bulb in my Continental GT 650.
It is brighter than the original led headlight of my wife's Honda CBR.
(also much brighter than the Continental's original H4 halogen bulb).
So leds have the potential to put out much more light, but I guess a manufacturer has to comply with all sorts of international standards.
Making one headlight that meets all regulations is cheaper than making the best possible for each country.
On AliExpress they sell 7" headlights, mate to fit inside, as a replacement for a bulb and reflector.
Maybe this also works for the Shotgun.
Or some auxiliary lights.