MASTER PL-T 4-Pin dimmable CFL Lamp, designed for general or supplementary lighting in professional and semi-professional environment, ideal for use in recessed or surface mounted downlight, wall unit, outdoor lighting. First choice for short switching cycles, emergency lighting and deep dimming. The MASTER PL-T is an energy saving compact fluorescent lamp. Envelope consists of 6 parallel narrow fluorescent tubes. Optimal light performance for short or long operation per switch on. More light (about 15% more) per light point than common. Long life and sustainable light output. 4-Pin base without glow switch starter and capacitor. Fast light run up under all circumstances.