Philips PL-Q Compact fluorescent Lamp with a quadrant-like shape. High light quality and optimum lumen output provide increased value for money. Ideal for applications such as corridors, toilets, stairwells, reception areas. Lamp light technical and electrical characteristics are influenced by operating conditions, i. e. lamp ambient temperature and operating position as well as applied HF control gear. Shorter lamp life when often switching and not well pre-heated electrodes.