... 36W 1-sterilization, 2-air purification, 3-medical disinfection The lamp have different size and lengh ,can be ozone or ozone ... can reached 9000 hours! Detailed Description of the uvc lamp Features: hot cathode, pre-heat start;material:quartz class ,can be ozone ... goods in the hospitals, schools, restaurants, homes and offices: UV lamp T8 10W 15W 18W 25W 30W 36W