OSRAM 64663 HLX (XENOPHOT) – 36V 400W bi-pin halogen lamp, G6.35 base, high flux for optics, laboratory and stage
The OSRAM 64663 HLX is a reflectorless , low-voltage halogen lamp with a G6.35 base and a wattage of 400 W at 36 V. It belongs to the XENOPHOT (HLX) family, which replaces krypton with xenon gas as the fill gas to deliver up to 10% more luminous flux with the same energy consumption compared to standard halogen lamps. It is optimized for medical fiber optic illumination, microscopy, laboratory analysis, UV curing, and special entertainment lighting. Its precision-aligned filament design and high-purity quartz provide instant start , near-constant flux throughout its lifespan, and a color rendering index (CRI) of Ra 100 , with a color temperature of 3250 K as defined by OSRAM.
Main features
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XENOPHOT HLX technology: xenon gas in the filling that provides up to 10% more light at the same power.
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Electrical: 400 W, 36 V (alternating current), adjustable .
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Optics: 3250 K , CRI Ra 100 , 16,200 lm nominal.
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Filament geometry: illuminated field 9.3 × 4.9 mm; filament length 9.3 mm; filament diameter 4.9 mm.
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Dimensions: total length 60.0 mm; diameter 15.0 mm; LCL (length to luminous center) 36.0 mm.
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Socket: G6.35 (bi-pin).
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Nominal useful life: 50 h.
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Burning position: s90.
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Energy label: EEI B (product documentation).
Product benefits
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More light with the same consumption: HLX technology increases luminous efficacy compared to conventional halogen lamps, useful in optics and medical applications where every lumen counts.
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Color and reference detail: Ra 100 for faithful color reproduction in inspection, microscopy and scientific photography.
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Beam stability: precise filament alignment for a uniform and repeatable beam.
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Instant on and dimmable: immediate response and compatibility with dimming to adjust the intensity according to the procedure.
Use cases
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Medicine and dentistry: light sources for fiber optics , chair lamps and surgical systems.
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Laboratory and analysis: microscopy, inspection, viewers and UV curing equipment.
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Entertainment and image: stage lighting and effects, projectors and special lighting heads.
Equipment compatibility and examples
The ANSI EVD/LIF A1/239 format is widely adopted in lighting and effects equipment. Reported examples:
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American DJ: BEAMER-40, COLOR SWEEP, DISCO-STAR, GYRO, HURRICANE, MIRAGE, NINJA, PROBE, ST-1080, TEMPES, TYPHOON.
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LAMPO: DERBY, ES50 KALIMA, ES51 KALIMA, ES61 MOVING LIGHT, ES80 ZEFIR, ES90 ZEFIR, UNICO.
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METEOR: LIGHT MINE, SHOTING STAR 400W.
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BUHL: 2963.
Before replacing, always check the equipment manual for the reference EVD 36 V 400 W G6.35 and the LCL 36 mm .
Frequently Asked Questions
What is the difference between HLX and a standard halogen bulb?
HLX uses xenon as a fill gas to increase luminous flux without increasing power.
Is it adjustable?
Yes, the 64663 HLX is dimmable with compatible low voltage regulating equipment.
Why do some businesses quote 3550K?
OSRAM specifies 3250 K for the 64663 HLX; some distributors list 3550 K as a typical value. For critical applications, refer to the official datasheet.
Can it be mounted in any position?
The nominal position is s90 . Respect this orientation to ensure performance and service life.
Installation and safety notes
- Use only in luminaires designed for bi-pin G6.35 36V 400W halogen bulbs, with adequate protection against heat and breakage.
- Avoid touching the quartz bulb; handle with gloves or a lint-free cloth.
- Check the actual supply voltage (36 V AC) and the system ventilation.
Project description
Low voltage halogen lamp without reflector, OSRAM 64663 HLX (XENOPHOT), ANSI EVD / LIF A1/239 , 36 V AC, 400 W, G6.35 base, 3250 K , Ra 100 , 16200 lm , LCL 36.0 mm, length 60.0 mm, diameter 15.0 mm, illuminated field 9.3 × 4.9 mm, burn-in position s90, rated life 50 h, dimmable .
