Sleeping through the Apocalypse
4,000 watt-seconds of Norman 40/40 pop, driving four bare-bulb flashheads at 1,000 w/s each.
Two of the flashheads were between the powerpack and wall behind me, the other two dangled off the sides in partial view of the lens. All four were in a cluster, so probably count as one light, smaller than a typical umbrella.
I needed f/36 at ISO100 to keep the exposure in check.