Philips MASTER TL-D Fluorescent Lamp with low pressure mercury discharge lamps with a tubular 26 mm envelope. Highly efficient 3-band fluorescent coating in combination with New Generation pre-coating technology. Special fluorescent coating gives good colour rendering. Relatively high efficiency, both initially and during lamp lifetime, with high lumen maintenance. Create atmospheres from warm white to cool daylight. Suitable for use in a wide range of luminaires for TL-D fluorescent lamps for ’human’ applications such as schools, offices, shops, factory halls etc.