So, this is the one I decided on:
It was tough to find without the part number, so here is a link:
and this is what it looks like inside:
Of course, as I left the store with the light, I wondered how the (don't click) motion sensor would actually work. I've had bad luck with such things in the past. It turns out, this works really well. You can set the light to stay on for 30 or 60 seconds after the last motion is sensed. The part I really like is the swivel on the light, which lets me direct the light down through the rifle (don't click here) slots. This is important, since my AR is usually kept in the lower part and isn't long enough to fit up through the slots.
|Viewed from the lower part of the safe through a gun rest|