LED In-pavement TLOF Perimeter Light (TBC: no English datasheet)

The TLOF perimeter light marks the boundary of the touchdown and lift-off area (TLOF) of a heliport and is spaced evenly around the edge of the area. The lights form a clear, continuous outline of the landing area, helping pilots judge the touchdown point and the usable extent at night and in low visibility. The fixture uses an LED light source and a light distribution designed for the application; its photometric performance is aligned with the requirements of the corresponding airfield lighting system, giving airport operations a steady, clear and easily identified visual signal.

Application/Use

Features

• Long LED service life, low energy consumption and maintenance-free operation bring substantial economic benefits to the operator
• A purpose-designed LED lens greatly increases luminous efficacy
• Strict LED color binning ensures consistent output color
• Proprietary prism structure and manufacturing process deliver outstanding optical performance
• The dimming curve matches that of halogen fixtures, complying with FAA requirements; the proprietary driver circuit and thermal management greatly improve reliability and service life; power factor above 0.9 keeps interference with the supply network to a minimum
• Professionally styled housing gives the fixture a clean overall appearance
• The purpose-designed structure protrudes less than 6.3 mm above grade
• The flat light-emitting face of the upper cover prevents water build-up and keeps luminous efficiency high; the forged, equal-strength cover offers good mechanical performance, load-bearing capacity and impact resistance
• Smooth upper cover without sharp edges protects aircraft tyres
• The body is corrosion-resistant aluminium alloy with special anodising and stainless steel fasteners throughout, suiting the fixture to harsh environments; the high-conductivity alloy also gives good heat dissipation
• High-precision machining of every part guarantees dimensional quality and accuracy throughout
• IP67 ingress protection withstands 138 kPa internal pressure or the water pressure generated by aircraft impact on the optical window
• Interchangeable modular components suit the whole range of 8-inch LED in-pavement omnidirectional fixtures