Fire Fighting is a Dangerous Feat, and in the 1920s It Was Far More Difficult, and Hard to See, So Firemen Had a Portable Generator and Flood Light Rig Made

 a mobile generator 10kW, five kilowatt lamp stationary and portable eight, 400 watt. Plus 500 feet of wire for these remote spotlights
Found on http://strangernn.livejournal.com/865110.html