Side-by-side
FX850D / FX850ED Inset Runway Threshold Light vs NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C)
Spec comparison for two products on Aviation Souk. Both compete in Runway Lighting & Airfield Electrical.
Runway Lighting & Airfield Electrical
FX850D / FX850ED Inset Runway Threshold Light
by ATG Airports
High-intensity inset LED runway threshold light marking the designated landing area beginning with green for arriving aircraft and red for departing.
Runway Lighting & Airfield Electrical
NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C)
by Vosla Gmbh Narva
P28s prefocus incandescent airfield lamp for constant-current regulated series circuits.
| Cost of ownership | FX850D / FX850ED Inset Runway Threshold Light | NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | FX850D / FX850ED Inset Runway Threshold Light | NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C) |
|---|---|---|
| FAA Designation | L-850D(L) | — |
| Light Output Colour | Green (FX850D) / Green + Red (FX850ED) | — |
| Operating Current | 2.8–6.6 A | — |
| Protrusion Above Grade | 6.0 mm | — |
| Style Compliance | FAA Style 3 / ICAO Style 4 (≤6.3 mm) | — |
| LED Service Life | >60,000 hours | — |
| IP Rating | IP67 | — |
| Operating Temperature | -55 to +55 °C | — |
| Mounting | 12" IEC standard seating pot | — |
| Connector | FAA L823 Style 1 | — |
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