Metal halide lamps for open and closed luminaires. Product features: POWERBALL© ceramic technology. Integrated reflector. Light colors: warm white (830 WDL, 930 WDL), neutral white (942 NDL). Product advantages: Very high efficiency. Easy lamp installation/lamp replacement in open luminaires. Optimum radiation behavior. Good to very good color rendering. Very good color stability. Thanks to UV filters, the maximum permissible UV limit values according to IEC 61167 are significantly undercut. Areas of application: Sales rooms, shop windows. Shopping arcades. Museums, exhibitions. Industry. Gardens, parks. Buildings, monuments, bridges. Suitable for closed and open luminaires. Outdoor applications only in suitable luminaires.