Metal halide lamps with ceramic technology for enclosed luminaires. Product features: White light thanks to POWERBALL© ceramic technology. Light color: warm white (830 WDL). Extended service life (maintenance cycle): 4 years (at approx. 11 hours/day). Very high luminous efficacy: up to 110 lm/W. Lamp survival rate: 95% with 16,000 hours of burning time. Average service life: up to 24,000 hours. ErP-compliant according to EU Regulation 245/2009. Dimmable with conventional ballasts and electronic ballasts. Product advantages: Improved luminous flux maintenance of up to 15% compared to HCI-ET standard lamps. Up to 30% higher luminous efficacy with 100 W lamps (compared to NAV-T Super 4Y/6Y). Good color rendering. Can be used at HPS (NAV) lighting points because ignition conditions according to IEC60662 are met. Up to 70% energy savings when replacing mercury vapor lamps (HQL). Optimum energy efficiency when operated on EVG POWERTRONIC© PTo 3DIM. Thanks to the UV filter, the maximum permissible UV limit values according to IEC 61167 are significantly undercut. Areas of application: Streets. Outdoor lighting. Industrial plants. Exhibition and trade fair halls. Only approved for use in closed luminaires. Outdoor applications only in suitable luminaires.