The philips hf m blue 114 lh tlpl spl c is a linear non dimmable high frequency ballast to run 1 x 13 watt t5 fluorescent tube 1 x 11 watt pls single turn compact fluorescent 1 x 10 or 13 double turn compact fluorescent and 1 x 14 t5 this ballast has flicker free start multi lamp ballast compact power ic and energy saving of more than 25 compared with electromagnetic gear the philips hf m blue range is suitable for installations with emergency back up