Germicidal Compact Fluorescent Lamps,Wave length :254nmwith or without ozone, Germicidal Compact Fluorescent LampsUVC Compact Fluorescent Lamps.Key Specifications Watt: 7w/9w/11w/13w/15W Bulb Type:T4 Base :E27,B22,E26,E14 Wave length :254nmwith or without ozoneThis wave length has particular strong effect on nucleoalbumin,and causes variations or death of gems.Germicidal lamps can be made of ...