OSRAM SIRIUS HRI 280 W - Short arc discharge lamp with reflector for moving heads (11,500 lm · 7,800 K)

OSRAM SIRIUS HRI 280 W - Short arc discharge lamp with reflector for moving heads (11,500 lm · 7,800 K)

The OSRAM SIRIUS HRI 280 W is a very short arc discharge lamp with an integrated reflector , specifically designed for moving heads and compact entertainment projectors. It offers extremely high luminance for focused beams and sharp effects, with a nominal flux of 11,500 lm and a color temperature of 7,800 K. The optimized burner design allows for any working position and maintains stable light output throughout its lifespan. It operates with an electronic ballast (ECG) and requires forced cooling .

Main features

• Power/Voltage/Current: 280 W · 70 V · 4 A.
• Flux and color: 11,500 lm · 7,800 K.
• CRI (Ra): 78.
• Compact geometry: Ø 51.0 mm · length 54.5 mm · weight 60 g.
• Integrated optics: aperture window max. 5 × 3.8 mm; working distance 34.5 mm.
• Short and stable arc: cold electrode gap 0.9 mm.
• Ignition and control: ignition voltage 2.5 kVp; adjustable with suitable ECG.
• Burning position: any .
• Cooling: forced (mandatory in service).
• Nominal useful life: 2,000 h .
• Safety: operation in a closed housing ; quartz and high internal pressure require UV and mechanical protection.

Product benefits

• High luminance from a point source for very defined beams and bright effects.
• Stable and consistent color within the SIRIUS HRI family, with constant quality at different power levels of the equipment.
• Quick installation: lightweight and compact lamp with reflector; easy replacement .
• Maximum flexibility: the burner design allows for any working position.

Use cases

• Live shows: concerts, festivals and touring with beam/spot/wash moving heads.
• Clubs and discos with high-intensity beam effects and cool color.
• Theatre, TV and corporate events that require highly concentrated accent lighting.
• Ephemeral architecture / fairs with compact and bright projectors.

Usual compatibility (selection)

Commonly found in many 280W moving heads. Notable examples include Robe Pointe (RO version), Briteq BTX-TITAN , and ACME XP-280 Beam , among others from brands such as Ablelite, XMLite, Futurelight, and Music & Lights. Always verify the exact lamp model required by your equipment manufacturer (e.g., specific " RO " variants).

Frequently Asked Questions

• Is it adjustable? Yes, with the compatible projector's electronic ballast .
• Can I mount it in any position? Yes, the lamp supports universal burning positions .
• Does it need cooling? Yes, forced cooling during operation.
• Is it safe for open use? No. It must be operated in enclosed areas with UV filters and protective measures according to the manufacturer's safety data sheet.

Project description

OSRAM SIRIUS HRI 280 W discharge lamp with reflector; 280 W ; 70 V ; 4 A ; 11,500 lm luminous flux ; 7,800 K ; CRI 78 ; Ø 51.0 mm ; length 54.5 mm ; working distance 34.5 mm ; window 5 × 3.8 mm ; electrode gap 0.9 mm ; ignition 2.5 kVp ; rated life 2,000 h ; burn-in position: any ; forced cooling ; use with ECG in enclosed luminaire.