4551 - Textron Aviation OEM Landing Taxi Light Lamp

4551 – Textron Aviation OEM Landing Taxi Light Lamp

Available now on the Airparts.aero Marketplace.

Overview

The 4551 is an industry-standard, high-intensity incandescent sealed beam lamp, specified by Textron Aviation and other manufacturers for use as a primary landing light on a wide range of corporate and transport category aircraft. This is not a taxi light; it is a powerful, 600-watt lamp housed in a large, PAR64 form factor. It is engineered to produce an extremely narrow, tightly focused, and powerful beam of light capable of illuminating the runway environment from a significant altitude on final approach. Manufactured by leading aerospace lighting companies like General Electric, this lamp is designed for maximum long-range visibility during critical night operations.

Key Features

• High-Intensity 600-Watt Filament: Features a powerful, C-6 type incandescent filament that consumes 600 watts to produce an exceptionally bright, white light. This high power is essential for providing long-range runway and obstacle illumination.
• Sealed Beam Construction: The lamp is a hermetically sealed unit containing the filament, a precision parabolic aluminized reflector, and a clear lens in a single, integral glass housing. This design protects the filament and reflector from the elements and vibration, ensuring a consistent beam pattern.
• Narrow, Long-Range Beam: The parabolic reflector and clear lens are engineered to focus the light into a very narrow, high-candela beam (typically around 11° horizontal by 7° vertical). This "spotlight" effect is designed to illuminate the runway threshold from several miles out on approach.
• PAR64 Industry Standard Form Factor: Manufactured to the universal PAR64 form factor, a large 8-inch diameter sealed beam lamp. This ensures interchangeability and a perfect fit in the landing light housings of many different aircraft types.
• Heavy-Duty Screw Terminals: Equipped with robust, heavy-duty screw terminals to handle the high electrical current (over 20 amps) required by the 600-watt filament, ensuring a secure and reliable electrical connection.

Technical Specifications

• Part Number: 4551
• Component Type: Incandescent Sealed Beam Lamp
• Primary Application: Landing Light
• Form Factor: PAR64
• Voltage: 28 VDC
• Wattage: 600 Watts
• Current Draw: Approx. 21.4 Amps
• Base Type: Screw Terminal
• Filament Type: C-6
• Nominal Diameter: 8.0 inches
• Average Rated Life: 25 hours

Aircraft Compatibility

The 4551 is a standard landing light for a wide range of business jets, turboprops, and regional airliners that require a high-power, PAR64 lamp.

• Common Textron Aviation Platforms:
  • Cessna Citation Series (various models)
  • Beechcraft King Air Series
  • Hawker Business Jets
• Other Common Platforms:
  • Learjet, Gulfstream, Dassault Falcon, Embraer and other corporate and regional aircraft.

Applications

The 4551 lamp is a critical component for safe night and low-visibility flight operations:

• Night Approach & Landing: Its primary function is to provide long-range illumination of the runway surface and surrounding environment during final approach, flare, and landing.
• Aircraft Recognition: Used to enhance the visibility of the aircraft to other pilots and to air traffic control, both in the air and on the ground.
• Runway Inspection: Allows the flight crew to inspect the runway surface for debris, ice, or other hazards prior to touchdown.

Why Choose 4551?

Safe night landings are entirely dependent on the performance of the aircraft's landing lights. The 4551 is the proven, industry-standard lamp that provides the raw power and focused beam needed to see and avoid obstacles from a safe distance. Using a high-quality, certified lamp is essential, as its 25-hour rated life reflects the extreme operating temperature of its filament. A properly manufactured lamp ensures it will perform reliably and provide its full rated light output when it is needed most.

Order Your 4551 Landing Light Lamps Now

Ensure maximum visibility and safety for your night operations with a high-intensity, certified landing light. Visit Airparts.aero to order your 4551 PAR64 landing light lamps today.

The 4551 lamp is an incandescent sealed beam unit designed for maximum light projection. The "sealed beam" technology integrates a precisely positioned tungsten filament at the focal point of a parabolic aluminized reflector (the "PAR" designation). This entire assembly is enclosed within a single glass envelope, creating a vacuum or filling it with an inert gas. This design has two key advantages for aviation. First, the reflector's focus and position relative to the filament never change, guaranteeing a consistent, tightly collimated beam pattern. Second, the hermetic seal prevents oxidation of the reflector surface, ensuring the lamp maintains its peak brightness throughout its operational life. The extremely high wattage (600W) heats the filament to a very high temperature, producing a brilliant white light but also limiting its operational lifespan to around 25 hours.

Note: This is a high-amperage electrical component. Installation must be performed by a certified A&P or AME mechanic. Ensure the lamp's voltage and wattage match the specifications for your aircraft's lighting circuit to prevent damage to the wiring, relay, or circuit breaker. Handle the lamp carefully, as the glass envelope is fragile and can get extremely hot during operation.