My old eyes don't work the best with either of the red dots I have in low light, Mine are not the lowest of the low end, but they are not the best either. Maybe one of the premium priced units will be better.
I have used zero power scopes on muzzleloaders that have worked well in low light. Here we can't use magnification in the muzzleloading season, so the no mag scopes work, and even seem to gather light better than peeps or even iron sights.