Commenting since we have this thread. A big cow moose has been hanging around the house this evening, as darkness fell. I tried to shoo her away, as we had stuff to do, but she wasn't budging from eating the remnants of our fireweed. Since it is getting towards bed time, needed to let the dog out. I got pretty much whatever I want available, but I grabbed my 870 with Brenneke slugs and the Surefire fore end to escort her out.
That shotgun has aperture sights and a generation or two old SF fore end, with +/- 125 lumens. Of course I took some sight pictures around the yard, and I don't care for aperture sights in low light. Additionally, 500 lumens would be mo better outside in the dark. Would rather have my Trijicon HD sight arrangement and at least an X300U for low light.