UVC water purify UV lamp wave length 253.7nm,254nm 40w Disinfecting for Water purify,, medical disinfect Air pollutionUVC Disinfecting UV lamp for medical , water purify,STATE: Disinfecting UV lamp is the wave length of 253.7nm,(most of people name it 254nm) (we called it UVC)which made by quartz.The wave length of 254nm can kill various microorganisms by radiation directly;other field of UVC ...