9 Watt PL-S G23 TUV Germicidal Ultraviolet Light Bulb 9W (9 Watts) 9 Watt PL-S G23 TUV Germicidal Ultraviolet Light Bulb 9W Anyray AUVC-9W 100% Ozone Free Short-wave UV radiation with a peak at 253.7 nm (UVC) for disinfection purposes G23 2-pin Base / Bulb Length 6-1/2'' inches Long Life 10,000 Hours Germicidal Ultraviolet Light UV Bulb, LAMP Warning sign on lamp indicates that the lamp radiates UVC