TUV PL-S - Compact solution for residential applications Controlled UV-C output over lifetime of the lamp;High system efficacy ;Good environmental choice because of lowest amount of mercury TUV PL-S lamps are compact UV-C 254 nm lamps. The compact size of the lamp allows for a small system design and design flexibility. TUV PL-S lamps offer almost constant UV output over their complete lifetime. Thanks to the single-ended lamp base, lamp replacement is easy. Short-wave UV radiation with a peak at 253.7 nm (UVC) ;Protective inside coating ensures constant UV output over the complete lifetime of the lamp;Lamp glass filters out the 185 nm ozone-forming radiation;2-Pin PL-S lamp base contains a special starter for almost instant starting on electromagnetic drivers;4-Pin PL-S lamps are designed for use on electronic drivers;Warning sign on lamp indicates that the lamp radiates UVC Residential drinking water units;Pond water units;Air treatment units;Stand-alone air handlers