High-pressure sodium vapor lamps for open and enclosed luminaires. Product features: Lamp survival factor: 95 % after 16,000 h burning time. Average lifetime: up to 36,000 h. Lamp maintenance factor: 80 % after 16,000 h burning time (according to DIN 13201). Service lifetime: 4 years (at approx. 11 h/day). ErP compliant according to EU Regulation 245/2009. Dimmable on conventional control gears and electronic control gears. Product benefits: Long lifetime. Very high luminous efficacy. Very good luminous flux maintenance throughout the life of the lamp. Energy savings of up to 50 % when replacing mercury vapor lamps (HQL). Optimum energy efficiency on POWERTRONIC PTo 3DIM ECGs. Areas of application: Streets. Outdoor lighting. Industrial installations. Suitable for use in open and enclosed luminaires. Outdoor applications only in suitable luminaires.