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01-0771888-01 – Whelen Aerospace Technologies FAA-PMA LED Recognition Light Assembly
Available now on the Airparts.aero Marketplace.
Overview
The Whelen 01-0771888-01 is a high-intensity, FAA-PMA/STC certified LED recognition light assembly designed for 28 VDC aircraft. This is a state-of-the-art, solid-state lighting unit engineered as a direct, drop-in replacement for obsolete and failure-prone PAR-36 incandescent sealed beam lamps. Its primary function is to dramatically enhance the aircraft's conspicuity during all phases of flight, day or night, which is a critical factor in "see and avoid" collision avoidance. This light provides a powerful, forward-facing white beam, typically installed in wingtips or leading edges.
Whelen, a world leader in aviation lighting, has engineered this lamp for unparalleled reliability and performance. It utilizes high-flux LEDs coupled with an advanced, optically-engineered lens to produce a brilliant and focused beam of light for a fraction of the power consumption of the legacy bulb it replaces. The entire unit is self-contained, with all power conditioning and driver electronics hermetically sealed within a rugged aluminum heat sink housing. For operators seeking a massive upgrade in safety, reliability, and efficiency, the Whelen 71888 series is the definitive solution.
Key Features
Genuine Whelen Aerospace Technologies (WAT) Product: The industry standard for certified LED aircraft lighting, backed by a world-renowned reputation for quality.
FAA-PMA/STC Certified: A fully certified, airworthy lighting solution with a broad Supplemental Type Certificate (STC) Approved Model List (AML) covering thousands of aircraft.
Solid-State LED Technology: Replaces the extremely fragile filament of an incandescent bulb with robust, high-power LEDs, making the unit virtually immune to failure from vibration and shock.
Drop-In PAR-36 Replacement: Engineered with the standard PAR-36 form factor and screw terminals for a simple, direct replacement of legacy sealed beam lamps with no airframe modification.
Extreme Reduction in Current Draw: Consumes up to 80% less power than the incandescent light it replaces, significantly reducing the load on the aircraft's alternator and electrical system.
Extraordinary Service Life: Engineered for a service life well in excess of 10,000 hours, providing a "fit-and-forget" solution that eliminates the constant cycle of bulb replacement.
Fully Sealed & Weatherproof: The entire electronics assembly is potted in a thermally conductive epoxy, making it completely resistant to moisture, dust, and vibration.
Technical Specifications
Part Number: 01-0771888-01 (Whelen Model 71888 Series)
Component Type: LED Recognition / Landing / Taxi Light Assembly
OEM Manufacturer: Whelen Aerospace Technologies (WAT)
Voltage Rating: 28 VDC
Form Factor: PAR-36 (4.5" Round)
Current Draw (Typical): 1.2 Amps @ 28V
Color Temperature: Aviation White (~5000K)
Certifications: FAA-PMA, FAA-STC, meets RTCA/DO-160G environmental standards.
Aircraft Compatibility
This LED light is approved via a broad STC AML as a drop-in replacement for any PAR-36 incandescent lamp. It is eligible for installation on a vast range of general aviation, business, and rotorcraft, including but not limited to models from:
Textron Aviation (Cessna & Beechcraft)
Piper Aircraft
Cirrus Aircraft
Mooney International Corporation
Bombardier (Learjet)
Daher
And many others.
Note: The Whelen STC's Approved Model List (AML) is the final authority for determining installation eligibility for a specific aircraft make and model.
Applications
Recognition Lights: The primary application, providing a high-conspicuity forward-facing light for collision avoidance.
Landing Lights: Can be used as a high-intensity, durable landing light.
Taxi Lights: Provides bright, clear illumination for ground operations.
Why Choose 01-0771888-01?
The Whelen 01-0771888-01 is a direct investment in safety and reliability. Its brilliant light output makes your aircraft significantly more visible to other traffic, day or night, reducing mid-air collision risk. Its solid-state construction eliminates the single most common failure in aircraft lighting: the fragile incandescent filament, which is guaranteed to fail from vibration and shock, often at the most inopportune time. While the upfront investment is higher than a single sealed beam bulb, the total cost of ownership is dramatically lower. This lamp eliminates the recurring cost and labor of frequent bulb replacement, and its low power draw reduces stress on your entire electrical system. It is a modern, essential upgrade for any safety-conscious operator.
The superior performance and reliability of the Whelen 01-0771888-01 are enabled by its integrated power conditioning electronics. This is not simply a bulb; it is a smart electronic device. The circuitry includes a wide-input-range buck-boost DC-DC switching regulator. This takes the aircraft's notoriously variable bus voltage (which can range from 24V on the ground to over 30V in flight) and converts it into a precisely regulated, constant current to drive the high-power LEDs. Driving LEDs with a constant current is the only way to guarantee a stable, flicker-free light output and prevent thermal runaway that would otherwise destroy the LEDs. This driver circuitry is also heavily filtered and shielded to be extremely low in radiated and conducted emissions, ensuring it meets the stringent electromagnetic interference (EMI) requirements of RTCA/DO-160 and will not interfere with sensitive navigation or communication radios.
Note: The 01-0771888-01 is a flight-critical safety component. Installation must be performed by a certified A&P/IA mechanic in strict accordance with the Whelen STC installation instructions. While it is a "drop-in" replacement, the existing wiring and circuit breaker must be inspected to ensure they are in good condition. The light should be properly aimed after installation in accordance with the aircraft maintenance manual.
Documentation
Whelen Aerospace Technologies (WAT) Website: Full documentation, including the Master STC document, Approved Model List (AML), and Installation Manuals for this series of lights are publicly available for download from the official Whelen Aerospace Technologies website.
