Anyone heard of this? I was at Carnivoren and read about these. From what I understand.. they were promising in 1998 and then went kaput and as of 2005 have been in production yet again. They use sulfur and argon gas and are powered by a magnetron. NO MERCURY! YAY! I saw pics of them in industrial settings as well as horticultural, and I must say the pot they were growing was very healthy. There are no electrodes. I found a few websites, yet no prices
From my understanding, the lamps are spun while they are in operation to keep the plasma in center. Here's a lamp on start up,
Here is a plasma lamp next to a 1000 watt metal halide lamp for size comparison.
Here is a youtube video of one in operation. The man is reading out the power it's at while it's working and you can see it spinning.
In this video, you can see a super-bright beam shoot out of it. These things look like they are begging to explode but they seem very safe. I think I read the bulb actually outlasts the magnetron that runs it.