Product benefits: High efficiency. Simple lamp installation/replacement in open luminaires. Good to excellent color rendering. UV values significantly below the maximum permitted thresholds to IEC 61167 thanks to UV filter. Product features: POWERSTAR© quartz technology. Light color: daylight (D). Average lifetime: 9,000 h (HQI-E/P 250 W/D). Average lifetime: 16,000 h (HQI-E/P 400 W/D). Areas of application: Shopping arcades. Conference rooms, auditoriums, libraries. Factories and workshops. Exhibition halls and trade fairs. Rail stations, overground and underground. Pedestrian zones, public squares. Suitable for use in open and enclosed luminaires. Outdoor applications only in suitable luminaires.