SYLVANIA 56223 | Q4559X 600W 28V PAR56 Halogen Aircraft Landing Lamp

The Sylvania 56223 (Q4559X) is an aviation-grade, ultra-high-intensity **600W halogen reflector lamp** engineered exclusively for aircraft landing, taxiway assemblies, and runway illumination systems. Constructed within a heavy-duty, weather-resistant **PAR56 sealed beam glass envelope**, this high-performance lamp utilizes a robust **CC-8 filament design** optimized to withstand extreme mechanical vibration and thermal shock. Operating at a low-voltage **28V baseline**, it unleashes a blinding **46,000 initial lumens** arranged into a precision **Wide Flood (WFL)** beam spread for maximum peripheral situational awareness. Outfitted with heavy-duty **G53 Screw Terminals**, this specialized spotlight ensures a rock-solid electrical connection under demanding flight conditions.

High-Intensity Halogen Efficacy and Ruggedized Flight Engineering

Sylvania aviation-grade halogen lamps incorporate high-purity quartz envelopes and premium halogen gas cycles that suppress lumen depreciation, keeping the parabolic reflector gleaming at peak performance over its entire lifespan. Delivering an extraordinary **46,000 candlepower equivalent stream**, this configuration provides exceptional structural brilliance through adverse weather, fog, and nighttime airport descents. Designed with a heavy-gauge **CC-8 axial filament alignment**, the lamp structure is ruggedized against the intense atmospheric buffeting, G-forces, and engine vibrations inherent to airfield taxiing and high-speed touchdown applications.

• Precision Wide Flood Optics: Features a carefully molded prismatic glass lens that structures a uniform, wide flood beam pattern to illuminated taxi paths and critical runway thresholds.
• Vibration-Proof Screw Terminals: Engineered with a premium G53 screw-lug terminal base block, ensuring loose connections are eliminated even during hard landings or mechanical rattling.
• Sealed Parabolic Reflector: Built with a heavy-duty 8-inch diameter PAR56 glass shell featuring internal specular mirroring that isolates and focuses light forward without environmental leakage.
• Optimized Low-Voltage Input: Purpose-built for integration into standard 28V DC onboard aircraft electrical architectures or specialized airfield lighting transformers.

Technical Specifications

• Brand: Sylvania
• Product Code / NAED: 56223
• Ordering Abbreviation: Q4559X
• Technology Type: Incandescent Halogen - Sealed Beam
• Application Classification: Aircraft Landing & Taxiing / Specialized Aviation
• Wattage: 600W
• Voltage: 28V (Aviation Low Voltage)
• Bulb Configuration: PAR56 (Parabolic Aluminized Reflector, 8.00" Outer Diameter)
• Filament Structural Configuration: CC-8 (Heavy Duty Ruggedized Axial)
• Base Type: G53 (Single-Ended Screw Terminals)
• Beam Angle Distribution: Wide Flood (WFL)
• Initial Lumens: 46,000 lm
• Average Rated Lifespan: 100 Hours (Optimized for Peak Performance Output)
• Maximum Overall Depth: 3.95 Inches

Electrical Integration & Safety Requirements

• Voltage Constraint Warning: This lamp operates strictly at 28V. Do not connect this product directly to standard 120V or 277V line voltage networks, as doing so will cause immediate explosive structural failure of the bulb filament and severe arc hazard risks.
• Terminal Tightening: Ensure that wire harness ring terminals are securely fastened to the G53 screw blocks. Under-torquing can create focal electrical resistance points, causing lead melting or premature socket burnout under high current loads.
• Thermal management: Due to the extreme 600-watt power output compressed into a compact reflector, this halogen assembly generates immense localized heat. Operate only inside housings explicitly certified to withstand high aviation-grade operating temperatures.

Recommended Aviation Applications

• Commercial & Private Aircraft Landing Systems: Ideal forward-facing spotlighting configured to illuminate runway stripes during final approach and touchdown procedures.
• Aircraft Taxiway Guidewires: Provides intense, wide flood ambient coverage needed to navigate dark tarmac perimeters and terminal parking bays safely.
• Aviation Runway Lighting Infrastructure: Well-suited for ground-based emergency lighting rigs or stationary airfield heliport spotlight enclosures requiring high-wattage 28V infrastructure.