OSRAM 64657 HLX XENOPHOT - G6.35 24V 250W bipin halogen lamp for fiber optics, microscopy and laboratory
The Osram 64657 HLX XENOPHOT is a single-ended, low-voltage halogen lamp with a G6.35 base, designed for demanding applications in medical fiber optics , microscopy , laboratory analysis , UV curing , and surgical/dental illumination. It incorporates HLX (XENOPHOT) technology, which uses xenon gas as a filler to provide approximately 10% more luminous flux than a standard halogen lamp at the same power consumption. It delivers 9,000 lm (CRI 100 ) with a typical color temperature of 3,200 K , stable light output from start to finish, and excellent color rendering. Its quartz pinch precisely aligns the filament for optimal coupling to light guides. Rated life: 300 h . Compact dimensions: Ø 13.5 mm , length 55.0 mm , and LCL 33.0 mm (light center). Burn-in position: S90 . Dimmable.
Main features
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HLX (XENOPHOT) technology: xenon gas for greater luminous efficiency; virtually constant flux throughout its lifespan.
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Power / Voltage: 250 W / 24 V (AC).
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Photometry: 9,000 lm · CRI 100 · CT typ. 3 200K .
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Optical geometry: LCL 33.0 mm · illuminated field 8.0 × 4.0 mm² for efficient fiber/optical coupling.
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Dimensions and weight: Ø 13.5 mm · length 55.0 mm · approx. 3.35 g .
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Operation: dimmable · s90 position · instant start.
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Nominal life: 300 h .
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Equivalences: ANSI EVC · LIF M/33 .
Product benefits
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More light with the same consumption thanks to the xenon fill (HLX), ideal for systems with losses in light guides.
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Impeccable color and detail (CRI 100) for viewing, image capture, and precision procedures.
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Filament perfectly centered by quartz clamp, which improves focus and beam uniformity.
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Standard G6.35 format and compact dimensions for quick replacement in compatible equipment.
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Reliability in continuous use with stable output for the nominal 300 h .
Use cases
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Medical optical fiber (endoscopy, light guide illuminators).
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Microscopy and laboratory (optical benches, inspection, analysis).
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UV curing and compatible industrial processes.
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Surgical/dental lighting in examination lights with G6.35 base.
Frequently Asked Questions
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Is it dimmable? Yes, it is dimmable . Avoid extreme dimming and ensure proper ventilation to prevent shortening its lifespan.
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Is it suitable for domestic use? No. It is a professional lamp; it must be used in suitable fixtures with protection against heat and potential breakage.
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What do EVC and M/33 mean? They are ANSI (EVC) and LIF (M/33) codes that identify equivalencies of the same format/aptitude.
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How to optimize performance? Keep reflectors/optics clean and check the 33mm LCL to maintain focus.
Usage and safety recommendations
- Install only in suitable luminaires with screens/protections; indicate high temperature .
- Do not touch the bulb; handle with clean gloves or a lint-free cloth.
- Respect the specified s90 burn position and appliance ventilation.
- Plan preventive replacements based on service hours or flow drop.
Project description
Reflectorless low-voltage halogen lamp: Osram 64657 HLX XENOPHOT ; G6.35 base; 250 W , 24 V (AC); 9,000 lm ; CRI 100 ; LCL 33.0 mm ; illuminated field 8.0 × 4.0 mm² ; dimensions Ø 13.5 mm × 55.0 mm ; weight 3.35 g ; position s90 ; dimmable ; rated life 300 h . Application areas: microscopy, laboratory/analysis, UV curing, fiber optics, surgical/dental luminaires.
