The TKH Inset Approach and Side Row Light models, APH and SR, are advanced LED airfield ground lighting fixtures designed to meet the stringent requirements of international aviation authorities such as ICAO (Annex 14, Vol. 1) and FAA (AC 150/5345-46E). Engineered for long-term performance and reliability, these lights feature a robust construction with an outer diameter of 12 inches and a minimal protrusion of just 12.5 mm above the pavement surface, ensuring minimal interference with aircraft operations. The depth below the flange measures 50 mm, and the light outlet is precisely dimensioned at 49 mm by 10 mm for optimal beam distribution.
Both APH (Approach) and SR (Side Row) variants offer excellent environmental resistance with an IP68 rating, making them fully dustproof and waterproof. Designed for a lifespan exceeding 20 years, the useful lamp life of the LED source can reach up to 50,000 hours, providing an efficient and cost-effective lighting solution for modern airfields. These lights operate at a nominal current of 6.6 A with a power factor greater than 95%, ensuring high energy efficiency. At full current, power consumption is 97 watts for the APH model and 50 watts for the SR model. Voltage parameters are defined with Umax at 14.7 V for APH and 7.6 V for SR, and Umin at 1.7 V at 0.1% intensity.
Adaptable to a wide range of climates, the fixtures are rated for ambient temperatures ranging from -55 °C (-67 °F) to +85 °C (+185 °F), making them suitable for even the most extreme environmental conditions. Each unit includes an internal serial interface for diagnostics and parameterization, allowing for efficient system monitoring and maintenance. Optional enhancements include a fail/open function for improved safety, a sapphire-coated prism for added optical durability, and a de-icing kit that adds a minimum of 14 watts during operation to prevent frost buildup in colder climates.
For airports seeking advanced control capabilities, the APH and SR lights are compatible with TKH’s proprietary CEDD® (Contactless Energy and Data Distribution) technology. CEDD® is a smart, safe, and sustainable solution that transmits power and data through a single inductive cable. This technology allows fixtures to be installed or replaced without direct electrical contact, significantly reducing installation time, increasing safety, and enhancing system flexibility. When integrated with CEDD®, these fixtures can also feature optional single lamp control for precise management and monitoring.
Overall, the TKH APH and SR inset lights represent a modern, high-performance solution for approach and side row lighting applications, offering a blend of rugged durability, advanced technology, and energy-efficient design tailored for contemporary airfield operations.
https://www.friarsairfield.com/products/airfield-lighting/inset-lights/tkh-inset-approach-and-side-row-light-aph-sr
