cold cathode uv lamp: 1) 20,000Hours lifetime 2) CE,RoHS ... -200nm):1) 365 nm wavelength of UVA :it’s usually used in Ore appraisal,money and skin detection,stage decoration, moth ... away etc.2) 253.7nm of UVC lamps: can be used in hospital,school,cinema,public transpot,office,home, etc.It ... :Sterilizing of air,water,air condition,refrigerator,household appliance etc. cold cathode uv lamp