Kewl. I have seen one of these in person at the GE booth at Lightfair 2002. Pretty impressive. They were specially made to celebrate the 50th annivesary of Edison's first incandescent bulb. The 50kw bulb operated at 125v and 400 amps, and contains enough tungsten for millions of 100w bulbs.
Now I have to find out where's the 100,000w Westy.