i watched the clip and i would advise a few things.
1)drop the construction light
2)if you are looking for low budget decent lighting get some "china balls"
http://ep.yimg.com/ca/I/cinemasupplies_2117_478428369- you put normal light bulbs (150 watt max in the paper ones) in the middle and hang them- the light looks great and its even all around.
3)if you have a little budget try a chimera box-
http://www.bhphotovideo.com/c/produc...ith_Skirt.html
more pro even lighting and can withstand more temperature.
4)if you are stuck with the construction light try bouncing it off a large white surface onto your subject. you could buy a big piece of foamcore for instance or even a large piece of cardboard, paint it white.
thing is, you might need two construction lights to bounce sufficient light at this point, depends on the area you want to light.