The Osram QTP-M 1x26-42/220-240 is a Multiwatt non dimmable high frequency ballast to run 1 x 26 w double turn PL-C, 1 x 26, 32 or 42w triple turn PL-T,1 x 18,24,36 or 40w Long Single Turn PL-L, 1 x 22 or 40w Circular, 1 x 24 or 39w High output T5, 1 x18, 24 or 36w F shape Dulux F and a 1 x 18 or 36w T8 compact fluorescent lamp.