Halogen brightness for video
If anyone was curious, I managed to pick up a 400W halogen work light (supposedly delivering equivalent to 500W) and the exposure within a few metres (3-4) was spot on. I also bought a 250W halogen that I would probably use more as a fill light as it's a stop or so darker.

At f/2.8, ISO 100-320, 1/100th at 50 frames per second, the exposure on the histogram was pretty well on the money.

And the light cost me all of $20. I filmed it at 3000K (approximate temperature of halogens) using the CINEMA pf2 profile on my Canon EOS 60D. The profile produced an almost completed colour grade.