MASTER TL-D Super 80 T8 Fluorescent Tube, suitable for human application such as school, office, shop, factory hall. Low-pressure mercury discharge lamp with a tubular 26 mm envelope. Special fluorescent coating gives good colour rendering. Relatively high efficacy, both initially and during lamp lifetime, with high lumen maintenance. Create atmosphere from warm white to cool daylight. Highly efficient 3-band fluorescent coating in combination with New Generation pre-coating technology. High initial light output.