SYLVANIA 54585 | EHA 500W 120V Photo-Optic Tungsten Halogen Quartz Lamp

The Sylvania 54585 (EHA) is an industrial-grade, ultra-high-output **500W line-voltage photo-optic halogen capsule lamp** engineered for precision optical projectors, commercial stage spotlights, medical diagnostics, and overhead studio lighting arrays. Outfitted with a heavy-duty **GY9.5 prefocused 2-pin base** and a compact quartz glass profile, this technical projection engine delivers highly concentrated, pure white illumination. Utilizing an advanced internal gas fill to maintain a flawless **100 CRI** color accuracy rating throughout its operational lifecycle, this line-voltage bulb is designed to satisfy the rigorous tolerances of advanced optical lenses, condensers, and mirrors. Manufactured to exact global quality benchmarks, it serves as a trusted OEM replacement lamp for high-performance specialty equipment worldwide.

Elite Optical Tolerances and Consistent Professional Color Render

Sylvania Photo-Optic Specialty lamps are built to stringent mechanical and electrical thresholds to ensure uniform alignment of the tungsten filament relative to the host fixture's focal point. By concentrating intense luminosity into a tightly bound filament geometry, the **EHA halogen capsule** optimizes center-beam candlepower and prevents dark spots or aberration halos within critical lens paths. Its pure halogen cycle yields an uncompromised **100 CRI standard**, rendering complex textures, skin tones, and diagnostic media with flawless clarity. This stability makes it an indispensable component across high-demand studio, medical, and scientific projection configurations.

• Line-Voltage Efficiency: Formulated for native **120V electrical circuits**, removing the need for external low-voltage step-down transformers and simplifying internal luminaire housing designs.
• OEM Equipment Compatibility: Engineered as a precise drop-in replacement engine across a massive array of global medical, diagnostic, and theatrical lighting hardware profiles.
• Premium Quartz Enclosure: Heavy-duty quartz glass body tolerates intense internal pressures and intense operating temperatures while maintaining optimal spectral clarity.
• Prefocused Base Design: The specialized GY9.5 bi-pin layout aligns instantly into matching female ceramic sockets, maintaining strict optical focal paths over the life of the lamp.

Comprehensive Technical Specifications

• Brand: Sylvania
• ANSI Standard Identification Code: EHA
• Product Code / NAED Number: 54585
• Internal Distributor SKU: BGSEHA54
• Technology Type: Photo-Optic Specialty Tungsten Halogen
• Nominal Wattage: 500W
• Operating Line Voltage: 120V (Mains connection)
• Bulb Envelope Profile: Compact Halogen Capsule
• Base Type: GY9.5 (Prefocused Medium Bi-Pin Interface)
• Color Rendering Index (CRI): 100 (Maximum Color Fidelity Baseline)
• Operating Position: Reference manufacturer equipment specifications for optimal burn orientation
• Fixture Safety Rating: Approved for Use in Enclosed Halogen Fixtures Only
• Country of Origin: USA or Germany (Please verify individual batch details on outer packaging)

System Integration, Thermal Safety & Handling Protocols

• Mandatory Enclosed Fixture Protection: Because high-wattage tungsten halogen quartz capsules operate under extreme internal pressures and intense thermal limits, this lamp **must exclusively be operated inside approved enclosed halogen fixtures**. The host luminaire must feature a tempered, heat-resistant safety glass shield or protective enclosure capable of safely containing high-velocity glass fragments in the rare event of a lamp rupture.
• Handling Protocols: Never touch the raw quartz glass envelope with bare skin. Natural hand oils create severe localized thermal hotspots on the quartz surface during operation, causing the glass shell to thin, blister, and prematurely crack or burst. Always use a clean, lint-free cloth or the factory plastic wrap during installation. If accidental contact occurs, clean the bulb thoroughly with denatured rubbing alcohol and allow it to dry completely before powering on.
• Electrical Isolation Safeguards: Always disconnect the primary power source at the main breaker panel before attempting inspection, fixture maintenance, installation, or physical bulb replacement.
• Cool-Down Requirements: High-performance **500W photo-optic modules** generate massive thermal thresholds. Allow the fixture to cool completely for a minimum of 15 minutes post-operation before touching internal components to prevent severe contact burns.

Recommended Professional & Commercial Applications

• Precision Overhead Projection: Engineered as a high-density, replacement light source for commercial presentation projectors, microfilm readers, and vintage slide projection decks.
• Stage, Studio & Theater Spots: Ideal for compact theater border lights, studio backdrops, fill lights, and architectural spotlight arrays requiring high-wattage halogen punch.
• Medical and Laboratory Optics: Excellent choice for specialty diagnostic tools, high-magnification microscopy systems, endoscopy equipment, and surgical site simulators.