Short arc, without outer bulb for enclosed luminaires. Product features: POWERSTAR® quartz technology. Light colors: neutral white (NDL), daylight (D). Product advantages: Very good color rendering. Excellent color stability. Low luminous flux drop over the service life. Hot re-ignition capable. Compact dimensions for small spotlights. Good positioning thanks to K12s base. Areas of application: Sports and floodlight systems. Sports and multi-purpose halls. Airports. Simulation of the sun, material testing. Only approved for use in enclosed luminaires. Outdoor applications only in suitable luminaires.