OSRAM XBO R 181 W/45 C OFR - Short arc xenon lamp with reflector (f=45 mm) for microscopy, endoscopy and fiber optics

OSRAM XBO R 181 W/45 C OFR - Short arc xenon lamp with reflector (f=45 mm) for microscopy, endoscopy and fiber optics

The OSRAM XBO R 181 W/45 C OFR is a short-arc xenon lamp with an integrated reflector, optimized to provide very high luminance from a point source , ideal for demanding optical systems. It delivers a nominal flux of 800 lm with a color temperature of approximately 6,000 K (daylight) and a CRI > 90 , maintaining constant color and output throughout its 500-hour lifespan . It operates on DC (approximately 12 A ) at a voltage of 12.8–14.8 V , supports hot-restart , is dimmable , and is distinguished by its high arc stability and continuous visible spectrum . The OFR version is ozone-free . With a 45 mm focal length , FaXP2.5-2x65 base , 64 mm diameter , and 90 mm length , it integrates into microscopy illuminators, endoscopy units , surgical heads , fiber optic illumination , solar simulation , and imaging and scanning systems . It requires forced cooling and operation in a closed housing designed for XBO.

Main features

• Technology: short arc xenon lamp with reflector
• Power / operating mode: 181 W / DC
• Lamp voltage and current: 12.8…14.8 V (nominal 13.8 V) / 11.75…12.25 A (nominal 12 A)
• Nominal luminous flux: 800 lm
• Color temperature (CCT): 6,000 K (approx. daylight)
• Color Rendering Index (CRI): >90 (typically ~95)
• Focal length / working distance of the reflector: 45 mm
• Base / socket: FaXP2.5-2x65 (with connector)
• Lamp dimensions: diameter 64 mm; length 90 mm; weight 137 g
• Average lifespan (horizontal): 500 h
• Burning position: p20 (according to the chart)
• Cooling: mandatory, by forced air
• Features: hot reignition; adjustable; high arc stability; continuous visible spectrum
• OFR version: without ozone generation

Product benefits

• Extreme luminance and point source: facilitates efficient coupling to light guides and high NA optics.
• Stable color and output: 6,000 K and CRI > 90 constant throughout the lifetime, with continuous spectrum for reliable color reproduction.
• Professional operation: hot restrike , wide dimming and very stable arc for repeatable results.
• Optimized maintenance: 500 h average lifespan and robust construction for intensive use in laboratory and operating room.
• Safer environment: Ozone-free OFR version and operation in approved closed housings.

Use cases

• Microscopy (fiber illuminators, epi-illumination in scientific imaging).
• Endoscopy and medical lighting (including high-brightness surgical heads ).
• Light guide illumination in analysis and inspection equipment.
• Solar simulation , imaging and scanning , and other photonic applications requiring a point source.

Frequently Asked Questions

Does it need auxiliary equipment? Yes. It requires a specific stabilized DC power supply for XBO lamps and forced cooling depending on the luminaire.

Can I use it in any orientation? No. The data sheet specifies position p20 . Please respect the orientation indicated by the equipment manufacturer.

What does OFR mean? Ozone Free : version without ozone generation.

Is it adjustable? Yes, it is adjustable over a wide range and allows for hot restart .

Installation and safety recommendations

• Operate exclusively in closed housings designed for XBO lamps and with forced ventilation.
• Due to its high luminance , UV radiation and high internal pressure , always use PPE and the protective covers supplied for handling.
• Check polarity , electrical parameters and system airflow before turning on.

Project description

OSRAM XBO R 181 W/45 C OFR xenon lamp with reflector; 181 W DC; 12.8–14.8 V (nominal 13.8 V) and 11.75–12.25 A (nominal 12 A); luminous flux 800 lm; CCT 6,000 K; CRI >90; focal length 45 mm; base FaXP2.5-2x65; Ø 64 mm × 90 mm; weight 137 g; average life 500 h; burn-in position p20; forced cooling.