I've been thinking of a solution also. Just a couple fixed trailer or truck lights seem limited. So heres what I've come up with but haven't yet put together. We all have safety cones and caution tape on our trucks and could easily utilize them together with led floods on pvc poles. So material list 1 cheap plastic cord reel 1 roll of quality caution tape 1 200ft roll low voltage wire . Traffic cones 10 traffic cones = 1 every 20ft . 10 led flood lights. Pvc pipe 5- 10ft 1" 1/4" cut in half.
1 Unroll cation tape and wire and every couple feet secure together neatly w electrical tape 2 make a visible mark every 20ft on tape/wire combo 3 attach quality male female wire connectors at 20ft marks- roll the combo onto the cord reel . 4- 5ft pvc pipe slide into traffic cone mark the top of pvc for cone height. 6 mount lights to pvc with extra wire lead down to pvc mark from cone height attach the other wire connector male or female. Last is how to power the lights 12vdc off the pressure washer or generator. Using ac a generator means being able to use the buildings power also..
Now you can light up more than 1 side of a building adjust light angles, even lighting and quarantine and large section off with cones and cation tape. If a light breaks its easy and affordable to replace. The down side storing the light poles. Going with 2 reels 150 / 200 tape/wire combo truck center you can cover 300ft 400ft without ever moving the truck. Most guys use 200ft hose reel so this may be a good option. That would have saved me time last week bigtime. Could have covered 1/2 of a 18000 sqft building