The Sirius HRI 550W (55246) powered by Osram is a professional high-intensity discharge lamp engineered for compatible 550W moving head beam/spot/hybrid fixtures used in touring, clubs, theaters, and production environments. It delivers 28, 000 lumens at 7000K with Ra 75 for crisp, cool-white output and strong throw. Electrical specifications include 550W nominal wattage, 90V nominal voltage, and 6.1A nominal current. Optics geometry includes a 41mm working distance and a 1.5 mm electrode gap (cold). This model uses a Side Prong base, so verifying fixture compatibility is critical.
Nominal lifetime is 1, 500 hours. Common applications include 550W moving head enclosures.