OSRAM 64640 HLX (FCS) - G6.35 150W 24V bi-pin XENOPHOT lamp for microscopy and fiber optics
The OSRAM 64640 HLX (ANSI code FCS , LIF A1/216 ) is a low-voltage, reflectorless halogen lamp with a G6.35 base and a wattage of 150 W at 24 V. It belongs to the XENOPHOT HLX range, which uses xenon gas instead of krypton as a fill gas to offer up to 10% more luminous flux with the same energy consumption compared to standard halogen lamps. With 6,000 lm , a color temperature of 3,450 K , and a CRI of 100 , it provides a warm white light that is very uniform and has instant start-up . Its nominal lifespan is 50 hours under correct voltage and cooling conditions.
Thanks to precise filament alignment and OSRAM's dimensional control, the 64640 HLX maintains a stable beam and an illuminated field of 5.8 × 2.9 mm² , making it particularly suitable for microscopy , medical fiber optic illumination , laboratory and analytical applications , UV curing, and surgical and dental lighting . Its compact size (Ø 11.5 mm , length 50 mm , LCL 30 mm ) facilitates direct replacement in FCS-compatible equipment.
Main features
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XENOPHOT HLX technology: xenon fill for greater luminous efficacy.
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Luminous flux: 6,000 lumens.
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Color temperature: 3,450K; CRI: 100.
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Power/Voltage: 150 W / 24 V (alternating current).
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Base: G6.35 (bi-pin).
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Dimensions: Ø 11.5 mm; length 50mm; LCL: 30mm.
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Illuminated field: 5.8 × 2.9 mm².
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Nominal lifespan: 50 hours.
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Operating position: s90 (vertical base down / up to horizontal).
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Adjustable: Yes (compatible with traditional halogen dimming).
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Weight: 2.8 g (approx.).
Product benefits
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Up to 10% more light at the same consumption compared to standard halogens thanks to xenon gas (HLX).
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Instant start and virtually constant flow throughout its lifespan.
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Perfect color reproduction (Ra 100) for critical inspection and visualization tasks.
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Standardized dimensions and G6.35 base for quick replacement on FCS/A1/216 equipment.
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OSRAM quality : precise filament alignment for a stable and uniform beam.
Use cases
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Microscopy in laboratories and educational centers.
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Medical and laboratory fiber optic lighting .
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UV curing in laboratory processes and materials (depending on equipment).
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Surgical and dental (overhead) lighting in compatible units.
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Analysis and instrumentation equipment that specifies FCS 24 V / 150 W lamp.
Frequently Asked Questions
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Is it compatible with my device? Please check that your device specifies FCS/A1/216 , 24V 150W and a G6.35 base. If it matches, the lamp is the correct one.
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How does the HLX version differ? It uses xenon as a fill gas and offers up to +10% flow with the same power compared to standard halogen versions.
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Can it be regulated? Yes, with regulators compatible with low-voltage halogen lamps.
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Why is the lifespan 50 hours? These are high-luminance lamps for special use; operating them at nominal voltage and with adequate ventilation is key to achieving the stated lifespan.
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Installation tips: Do not touch the glass with your fingers; use gloves/lint-free cloth and clean fingerprints with isopropyl alcohol.
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Note on energy labelling: OSRAM's historical documentation indicates EEI: B ; as it is a lamp for special use , it may be exempt from the current general lighting labelling.
Good practices and safety
- Use only in luminaires/equipment designed for low voltage halogens and with adequate thermal/UV protection.
- Strictly respect 24V ; overvoltage significantly reduces lifespan.
- Ensure ventilation/cooling according to the equipment to preserve performance and durability.
Project description
OSRAM 64640 HLX (ANSI FCS, LIF A1/216) reflectorless low voltage halogen lamp, G6.35 socket, 150 W , 24 V AC , 6,000 lm , 3,450 K , CRI 100 , 50 h life, LCL 30 mm , dimensions Ø 11.5 mm × 50 mm , illuminated field 5.8 × 2.9 mm² , s90 position, dimmable.
