This is right off the main floor (1/2 floor up I guess?). This is lit via my flashlight bounced off the wall behind the camera.
This is the basement, which is completely dark. Off-camera flash fired by on-camera commander. Left strobe @ 1/16 power or so, right strobe at full power, bounced off the wall. My camera got a nice shower of rust debris when I accidentally bumped the hanging metal in the foreground.
Off-camera flash in the closet, manually fired after I walked past the camera. It was DARK down there.