SYLVANIA 54392 | EXR 300W 82V Photo-Optic Specialty Halogen Projector Lamp

The Sylvania 54392 (EXR) is an industrial-grade, precision-manufactured **300W tungsten halogen specialty lamp** from Sylvania’s world-renowned **Photo-Optic** product series. Engineered to operate at a specific **82V**, this high-intensity projection lamp features a premium **GX5.3 miniature 2-pin base** integrated into a faceted **MR13 dichroic faceted reflector**. Delivering a brilliant, focused point-source beam with a **3350K color temperature** and a flawless color rendering index (**CRI 100**), the EXR lamp uses cold-mirror coatings to project maximum forward light while dissipating destructive infrared heat through the back of the glass. It is a critical OEM replacement component worldwide for slide projectors, overhead overhead systems, and medical illumination modules.

Faceted Dichroic Optics and Precise Filament Alignment

Sylvania EXR projection lamps are crafted to demanding microscopic structural metrics to satisfy strict original equipment manufacturer (OEM) optical tolerances. The faceted **MR13 glass reflector** acts as a dichroic cold-mirror, which selectively channels high-intensity visible light forward into lenses or fiber-optic bundles while allowing more than 75% of back-end thermal heat radiation to pass cleanly out through the rear structure. This advanced thermal management preserves fine film slides, delicate transparencies, and sensitive optical components from undergoing extreme thermal degradation or warping.

• Pure Spectrum CRI 100: Complete full-spectrum rendering guarantees that highly technical medical screens, photographic slides, and micro-imaging systems reflect sharp, organic colors without digital noise or color casting.
• CC-2V Filament Configuration: Features a high-density, vertical coiled-coil wire distribution that stays geometrically centered at a rigid focal point within the parabolic curvature.
• Universal Burn Orientation: Provides continuous, unwavering light delivery and arc ignition across any standard spatial position or hardware alignment axis.
• Trusted Photo-Optic Pedigree: Manufactured inside Sylvania's elite precision production plants (USA/Germany) to satisfy strict baseline guidelines across specialized technical hardware arrays.

Technical Specifications

• Brand: Sylvania
• Product Code / NAED: 54392
• Internal SKU Reference: SXRL5439290
• ANSI Code: EXR
• Technology Type: Quartz Tungsten Halogen (Specialty Photo-Optic)
• Wattage: 300W
• Nominal Operational Voltage: 82V
• Bulb Configuration: MR13 (Faceted Dichroic Reflector)
• Base Type: GX5.3 (Single-Ended Miniature 2-Pin)
• Filament Structural Geometry: CC-2V (Coiled Coil Vertical)
• Color Temperature: 3350K (High-Intensity Warm-Neutral Spectrum)
• Color Rendering Index (CRI): 100
• Dimmable: Yes (Analog Linear Line Regulation)
• Operating Position: Universal
• Maximum Overall Length (MOL): 1.75 Inches (44.5 mm)
• Reflector Outside Diameter: 1.63 Inches (41.3 mm) / MR13 Profile
• Average Rated Lifespan: 35 Hours (High-Output Peak Target Rating)

Premium Specialized Applications

• Vintage & Commercial Projection Systems: Direct drop-in replacement for classic 35mm slide projectors, overhead presentation units, and schoolroom visual aids using an 82V EXR architecture.
• Medical & Endoscopy Gear: Serves as a highly reliable replacement light source for specialized medical examining boxes, light guides, and surgical alignment housings.
• Dental & Lab Microscopy: Delivers pure-spectrum, shadow-free, highly concentrated focus fields required for dental curing tables and clinical compound microscopy.

Critical Handling, Safety, and Ventilation Protocol

• Quartz Glass Thermal Precautions: Because quartz halogen capsules reach intensive temperatures rapidly, this bulb must only be deployed inside **approved, enclosed projection housings** featuring dedicated mechanical cooling fans or robust air vents. Never touch the interior halogen quartz capsule or the inner glass reflector with bare skin. Skin oils cause catastrophic structural stress fracturing ("hotspots") that lead to sudden premature capsule bursting. Handle using gloves or a perfectly clean cloth.
• Electrical Parameter Matching: Designed specifically for transformer-regulated step-down circuits delivering exactly 82V. Running this lamp on unmetered or non-compatible voltage rails will instantly blow out the vertical internal wire filament or cause dangerous fixture melting. Always turn off the principal power lines and allow the host housing to cool down completely for at least 15 minutes before executing an optimization swap.