Replacement 36W UVC light bulb for 2G11 lamp socket Effective UV light bulb germicidal, perfect as a room and HVAC duct sterilizer and an air purifier Short-wave UV germicidal light bulb with 253.7 for prolonged and effective disinfection Do not look directly at the bulb when in use. Prolonged exposure to UV rays can burn human and animal skin and damage eyes. Powerful 36W light bulb which can be used as a large room sterilizer