... 20w 30w 40w 3) Lifetime: 5000-8000hrs T8 20W 40W ultraviolet germicidal uvc tube Specification:1) Voltage: 110-130V, 220 ... is a low—pressure mercury lamp, the short —wave ultraviolet of killing nucleic acid albumen bacilli. This kind of tubes ... , sanitary engineering, bacilli, foodstuff and pharmaceutical industry, and various sterilizers, air purification, beauty industry, etc. Power(w)Length(mm) ...