High-pressure sodium lamps provide the highest luminous efficiency of all high-pressure discharge lamps. They are the most economical light sources in general lighting.
Nominal wattage 1000 W Rated wattage 960 W Lamp current 10.6 A Nominal voltage 110 V Ignition voltage 3.6 / 5 kVp Rated lamp efficacy (standard condition) 135 lm/W Rated luminous flux 130000 lm Color rendering index Ra≤25 Color temperature 2000 K Rated LLMF at 2000 h 0.96 Diameter 66 mm Length 360 mm Light center length (LCL) 240 mm Maximum permitted outer bulb temperature 400 °C Maximum permitted base edge temperature 250 °C Rated lamp survival factor at 20000 h 0.50 Lifespan B50 20000 h Lifespan B10 11000 h Lifespan B5 8000 h Base (standard designation) E40 Design / version Clear Lamp mercury content 39 mg Dimmable Yes Burning position Any Enclosed luminaire required No Energy efficiency class A++ Energy consumption 1056 kWh/1000 h
Benefits • High luminous efficacy
Areas of application • Streets • Outdoor lighting • Industrial installations • Suitable for use in open and enclosed luminaires • Outdoor applications only in suitable luminaires