High-voltage krypton lamps, road traffic. Product features: Lamp base resistant to corrosion. Long average lamp lifetime: 8,000 h. Maintenance intervals up to four months possible (depending on installation). Product benefits: Excellent optical efficiency thanks to a small cradle diameter. High luminous efficacy from krypton as filler gas. Max. premature failure rate: 2 % up to 3,000 h (related to lamp failures only). High resistance to shock and vibration thanks to nine supports for the filament. Areas of application: Road traffic signalling systems.