Philips MASTER SDW-T lamp is a compact, energy-efficient high-pressure sodium vapor lamp with a discharge tube of sintered alumina, enclosed by a clear soft glass outer bulb. This Master SDW-T is therefore a frequently used metal halide lamp in stores where foodstuffs are sold. Has a PIA (Philips Intergrated Antenna) for extra long life and UV protection. Gives a sparkling warm white light and excellent color rendering, especially in the warm colors.
Application . In grocery stores (lighting greetings, fruit and bread), clothing stores furniture stores, showrooms and shop windows. Master SDW-T lamps with PG12-1 lamp cap are used with an electronic or conventional VSA. Suitable for use in open luminaires.
Service life of the Master Color SDW-T. Dropout of 20% at 12,000 hours and 50% dropout at 15,000 hours. The light output at 25 ° C is 40-52 Lm / watt which is very high. This Master SDW-T lamp is NOT dimmable.
Available in wattages 35W, 50W and 100W. The color rendering (Ra) is higher than 81. Lamp installation is universal. 
