This 4Ft 36w TUV T8 lamp is used in professional water and air disinfection units. A TUV T8 lamp offers almost constant UV output over its complete lifetime, for maximum security of disinfection and high system efficacy. Moreover, it has a long and reliable lifetime, which allows maintenance to be planned for in advance. Mainly used in the sterilization of liquids, air and gases and for water or air purification.