LITG LED Inset Runway Guard Light
12-inch inset LED runway guard light providing the elevated-visibility runway-entry warning required at CAT I/II/III taxiway-runway intersections.
The LITG is a 12-inch inset LED runway guard light (RGL), the pavement-level component of the runway-entry warning system at taxiway-to-runway intersections. Runway guard lights are a direct countermeasure against runway incursion: their alternating yellow flash pattern commands holding traffic to stop short of the runway and provides a conspicuous visual cue in low-visibility and night conditions where signage alone is insufficient.
ICLAO Annex 14 and FAA AC 150/5340-30 classify RGLs as mandatory at CAT I/II/III-equipped intersections, with elevated (above-ground) RGLs supplemented by inset versions such as the LITG at airports operating in Runway Visual Range conditions below 400 m. The inset configuration is additionally required at high-traffic intersections where elevated fittings would create aircraft-clearance or snow-plough conflicts.
The LITG draws 35 VA without heating — a modest load given the intensity requirement of a safety-critical flash pattern — and is engineered so its 6.35 mm protrusion reduces tyre-strike forces on aircraft crossing the holding position. Electronics are built to withstand the shock and vibration environment at a busy runway access point, where the fixture sees both tyre overruns and significant jet-blast loads.
Compliance spans ICAO Annex 14 Figure A2-20, FAA L-852G(L) AC150/5345-46 EB67, IEC TS 61827, NATO STANAG 3316, CAA CAP 168, and IAAE TP312, making the LITG directly applicable to airport projects regulated by any of these frameworks, including GCC states that adopt ICAO standards with GCAA or GACA overlays.
Technical specifications.
| Fixture diameter | 12 inches |
| Pavement protrusion (overhang) | 6.35 mm |
| Power — standard (no Arctic Kit) | 35 VA |
| Power — with Arctic Kit | 75 VA |
| LED rated service life (normal conditions) | >100,000 hours |
| Standards compliance | ICAO Annex 14 Fig. A2-20, FAA L-852G(L) AC150/5345-46 EB67, IEC TS 61827, NATO STANAG 3316, CAA CAP 168, IAAE TP312 |
Use cases.
- ›Inset runway guard light arrays at taxiway-to-runway intersections on CAT I/II/III runways
- ›Low-visibility operations (RVR < 400 m) where inset RGLs supplement or replace elevated fittings
- ›Runway incursion prevention programmes requiring ICAO Annex 14 and FAA RWSL-compatible lighting
- ›Military and dual-use aerodromes requiring NATO STANAG 3316 compliance
- ›High-traffic intersection positions where elevated fittings create plough or clearance conflicts