uv lamp, used for killing bacterium,water treatment,hospital etc uv lampHigh Output Quartz lamps,it have ozone and free ozone types the Ultroviolet ... intensity is more than 2 times of normal uv ... GPH1149T12L/HO381149985901250907532535 10,00013,000 GPH1149T12VH/HO381149985901250907532535 10,00013,000 uv lamp