Duncan Is it your belief the Phillips lamp will be as good for de-calcification as the plasma? I am so looking forward to give this a test. Your healthy skepticism is what leads to the truth revealing itself. My first AS symptoms stated in 1960 and Dx'd in 1967 (yes last century). I thought I had tried everything until I started reading this forum. Now at 68 yrs old I really want to get off the biologics and daily NSAIDS. The NSD(3 months)has been a big boost and getting my gut healthy seems like its helping but there is still pain. I am bound and determined to beat this once and for all. Once I get the driver I also need the generator but do you know if the lamp could be run off the Scaar instead..and not need the generator so many things to learn and learn as you said Keep researching Jon