The Philips HF-M Blue 114 LH TL/PL-S/PL-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.