Philips 13298 MR11 10V 52W GZ4 - Dichroic halogen lamp for dental curing and fiber optic systems
The Philips 13298 is a 10V, 52W MR11 (R35) dichroic halogen lamp with a GZ4 base, specifically designed for professional applications such as dental curing , medical/scientific lighting, fiber optics , and projection. Its dichroic reflector dissipates heat to the rear of the optical system to keep components within thermal limits, while the precisely aligned burner ensures a stable and repeatable beam . It offers a CRI of 100 , a color temperature of 3400K , and a 25-hour average lifespan (F50). Features include a UV-open quartz bulb, universal working position , and a 26mm working distance . A version with a blue filter is available, which blocks radiation above 700nm for photopolymerization applications.
Main features
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MR11 (R35) dichroic optics: efficient thermal management and clean beam for high-precision systems.
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Reference color: CRI 100 with 3400 K for faithful color reproduction in clinical and laboratory settings.
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Dental curing: curing power at 400–500 nm: 330 mW/cm² (nominal data from the technical data sheet).
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Professional lifespan: 25 h (F50) ; virtually constant lumen maintenance.
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Robust construction: UV-open quartz bulb; max. thermal limits 900 °C (bulb) / 400 °C (pinch).
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Interface and mounting: GZ4 socket, universal position (any) , WD 26 mm ; quick replacement without refocusing.
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Compact dimensions: Ø 35 mm (MR11/R35) · total length 37 mm · weight 0.012 kg .
Product benefits
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Photometric stability and alignment repeatability thanks to the precisely positioned burner.
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Reduced thermal stress on the equipment due to a dichroic reflector that directs the heat backwards.
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Flawless color and detail (CRI 100) for clinical procedures, inspection, and documentation.
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Versatility : suitable for dental curing , endoscopy , fiber optics and scientific projection .
Use cases
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Dentistry: curing of photopolymerizable resins and putties; versions with blue filter available.
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Medicine and industry: fiber optic sources, endoscopy , precision lighting and projection .
Frequently Asked Questions
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Is it dimmable? Yes; keep in mind that dimming decreases the CCT, as with any halogen lamp.
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Is there a version with a filter? Yes, there is a variant with a blue filter that blocks >700 nm for dental curing.
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Do I need to refocus after the replacement? No; the MR11 design with an aligned burner minimizes adjustments after the change.
Project description
Philips 13298 MR11 ( R35 ) 10V , 52W dichroic halogen lamp, GZ4 base, CRI 100 , 3400K , 25h life (F50); WD 26mm ; max. thermal limits 900°C (bulb) / 400°C (pinch); dimensions Ø 35mm × 37mm ; smooth reflector finish; Quartz UV-open bulb; optional >700nm blue filter for curing.
