Low-voltage over-pressure lamps for 10 V systems, road traffic. Product benefits: Much higher luminous efficacy than high-voltage signal lamps. Clearly improved lamp quality due to higher gas pressure and inert gas filling. Leads to reduced power consumption of the signal installation. High resistance against shock and vibration compared to high-voltage lamps. Max. premature failure rate: 2 % up to 4,400 h (related to lamp failures only). Retrofit for 230 V systems (replace lamp and reflector and install transformator). Areas of application: Road traffic signalling systems.