Germicidal UV lamps(254nm) are often used for air purifier, water treatment and surface disinfection. Germicidal UV lamps with ozone(254nm+185nm) can kill the 99.9% of virus. And no chemical left after disinfection. Our UV 120W and 300W lamps are well-sold products and often used in school, office, home and hospital. The reason why choose us: 1.reasonable price; 2.high quality; 3.long lifespan; 4.high intensity; 5.superior service Our new electrodeless UV lamps: 1.water-proof; 2.start no warm-up; 3.60000h lifespan if you are interested in our products, please contact us soon. About the price, subject to negotiation.