I bought this 6 foot one for $100. You can find them online for around $100 for some brands. I bought this one used on craigslist.
Because the double ended 1000w bulbs are so powerful, I have to use a light mover, that or keep it 3 feet away or else they get heat stressed. From 2 feet away, the LUX is like 100,000, which is insane. I had no option but to get a light mover because I couldn't raise the light anymore.
However, this light is doing awesome, better than when it was stationary, better than when I had two lights covering the area, this 1000 DE gavita and a 600w apollo.
A light mover helps the light hit all the angles as it moves and penetrate places the light otherwise wouldn't.