I'm constructing a DIY UV air purifier that uses one UVC 40W lamp. So far, I’ve purchase two UVC lamps and two ballasts but have failed to get a lamp and ballast pair that works :-(
Purely UV - UVC Germicidal Lamp PUVP0040
http://www.purelyuv.com/uv-bulbs/detail.aspx?iid=1101025&iad=1101032...