We were working at a large maker of marine motors a few weeks ago. They closed their photo studio during the down turn, and they have us in to shoot some product photos a few times a year. They have pallets of old gear, some of it going back to the 1950s. For power packs, they have a bunch of Speedotron 4800 packs, which we use for photographing the big outboard motors. I plugged one in the other day, flipped the power switch, and it was like the 4th of July. Those big packs are scary when they go.