Metal halide lamps with ceramic technology for enclosed luminaires. Product features: POWERBALL® ceramic technology. Light colors: warm white (930 WDL), neutral white (942 NDL). Color rendering index Ra: ≥ 90. Average lifetime: 20,000 h (operation with ECG with 70…400 Hz square-wave current). Average lifetime: 15,000 h (with magnetic control gear). Product benefits: Very high efficiency. Excellent color rendering. Very long lifetime. Very good color stability. UV values significantly below the maximum permitted thresholds to IEC 61167 thanks to UV filter. Areas of application: Shopping arcades. Foyers, reception areas. Museums, exhibitions. Exhibition halls and trade fairs. Factories and workshops. Buildings, monuments, bridges. Approved only for use in enclosed luminaires. Outdoor applications only in suitable luminaires.