Philips 6958 (EVC/FGX M33) - Bi-pin halogen lamp 250 W / 24 V G6.35 (life 300 h)
The Philips 6958 —also known by the ANSI codes EVC/FGX and LIF M33 —is a 250W/24V reflectorless bi-pin halogen lamp with a G6.35 base, designed for projection, studio, microscopy, and special effects lighting . Its UV-open quartz capsule and perfectly positioned flat filament provide a clean and stable beam, with a CRI of 100 and a color temperature of 3400K . This long-life version (300 hours) reduces downtime and replacement costs compared to shorter-life variants. The operating position is S90 (base down to horizontal), and its compact form factor ( D 12.5 mm , L total 57 mm , LCL 33 mm ) facilitates integration into a wide variety of luminaires and specialized equipment.
Main features
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Power / voltage: 250 W · 24 V (low voltage) for high filament luminance.
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Light quality: CRI 100 · 3400 K · nominal flux 9,000 lm .
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Professional construction: UV-open quartz and 8.0 × 4.0 mm flat filament for a uniform beam.
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Extended lifespan: 300 h (F50) for less maintenance.
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Operation: S90 position (base down ↔ horizontal); standard G6.35 socket.
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Thermal resistance: max. bulb 900 °C · max. pinch 350 °C .
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Logistics: sales unit 1 piece; typical outer packaging 10×10F (100 units) .
Product benefits
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Reference color (CRI 100) and continuous light ideal for camera, optics and stage.
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Reduced maintenance thanks to the 300-hour version.
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Wide compatibility due to its G6.35 interface and standardized dimensions.
Use cases
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Projection and effects in theaters, auditoriums and clubs.
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Studio/TV : 24V quartz-halogen luminaires and projectors.
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Technical applications : microscopy, instrumentation and medical equipment requiring high CRI.
Frequently Asked Questions
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Is it adjustable? Yes; like all halogen lamps, it can be dimmed (dimming lowers the CCT).
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G6.35 or GY6.35? The technical reference is G6.35 ; some trade listings use “GY6.35” as a compatible designation.
Project description
Philips 6958 bi-pin halogen lamp ( EVC/FGX · M33 ), 250 W , 24 V , G6.35 base, 3400 K , CRI 100 , 9,000 lm , 8.0 × 4.0 mm flat filament , S90 position; dimensions D 12.5 mm , LCL 33 mm , length 57 mm ; thermal limits 900 °C (bulb) / 350 °C (pinch); life 300 h .
