I have to check the wharehouse to see how many left. Had 40 left in summer 04, but not all in working condition. They do require a large power supply. You can adjust beam width and they have a motorized shutter system to black out light without turning it off. Have uv and amber(fog) filters built in. Very large heavy cool stuff. Have not done any pizza cook time testing but could be arranged. I'll be back with pricing and avail later. Last year we sold a few for around 1,000 usd.