OSRAM 54218 SIRIUS HRI 100W HID Standard Bulb

High-Intensity Arc Lamp for Moving Heads

The OSRAM 54218 SIRIUS HRI 100W is a mercury short-arc reflector HID lamp designed for professional moving-head fixtures. It suits lighting technicians and venue operators who need a compact, lightweight source for beam effects. The optimised burner design allows operation in any burning position, and the lamp is built for straightforward relamping during maintenance intervals.

3680 Lumens with 6000-Hour Service Life

At 100 watts the lamp delivers 3680 lumens of high-luminance output, driven by a very short arc and high internal pressure. This level comfortably handles beam projection in small to mid-sized moving heads such as the ACME AE-610 BEAM and American DJ Vizi Beam RXONE. Output remains uniform across the rated 6000 hours, after which luminance drops and colour stability cannot be guaranteed.

Arc Discharge Limits in Compact Fixtures

The HID arc technology requires a compatible electronic control gear to strike and sustain the discharge; the lamp cannot operate directly from mains voltage. Its compact reflector format fits only fixtures engineered for the SIRIUS HRI 100W form factor, so it will not work in larger-profile housings or older discharge sockets. Any burning position is supported, but the arc gap and pressure envelope set fixed thermal limits that the fixture’s cooling must manage.