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    Osram HSR / HSD

    Osram HSR and HSD lamps provide effect lighting for architecture and entertainment. Features include: Proven, reliable technology for entertainment and architectural fixtures; Designed with an outer quartz jacket providing compact and rugged construction; High luminous efficacy of up to 90 lumens/watt; HSD 4ARXS are designed to withstand temperatures up to 450°C at the pinch seal and provide longer lamp life of up to 3,000 hrs (when operated on an ECG).