Philips MASTER SDW-T lamp is a compact energy efficient high pressure sodium vapor lamp with a sintered aluminum oxide discharge tube enclosed in a clear soft glass outer bulb. This Master SDW-T is therefore a widely used metal halide lamp in stores where foodstuffs are sold. Features a PIA (Philips Integrated Antenna) for extra long life and UV protection. Provides a sparkling warm white light and excellent color rendering, especially in the warm colours.
Application . In food shops (highlighting vegetables, fruit and bread), clothing stores, furniture stores, showrooms and shop windows. Master SDW-T lamps with PG12-1 cap is used with an electronic or conventional ballast. Suitable for use in open fixtures.
Lifespan of the Master Color SDW-T. 20% failure at 12,000 hours and 50% failure 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 the wattages 35W, 50W and 100W. The Color Rendering (Ra) is higher than 81. Mounting of the lamp is universal. 
