Side-by-side
ALDIS Aviation Signal Light Gun (IWT.801.APB) vs PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions)
Spec comparison for two products on Aviation Souk. Both compete in Runway Lighting & Airfield Electrical.

Runway Lighting & Airfield Electrical
ALDIS Aviation Signal Light Gun (IWT.801.APB)
by Inewatt
LED ALDIS signal light gun providing 20,000 cd white, 14,000 cd red, and 11,500 cd green ATC visual signals to 6.6 km with 8-hour battery autonomy.

Runway Lighting & Airfield Electrical
PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions)
by Vardhman Airport Solutions
Four-unit visual glideslope indicator giving pilots a precise colour-coded approach path signal from final approach to threshold, manufactured by ATG Airports and distributed across South Asia by Vardhman Airport Solutions.
| Cost of ownership | ALDIS Aviation Signal Light Gun (IWT.801.APB) | PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | ALDIS Aviation Signal Light Gun (IWT.801.APB) | PAPI / APAPI Precision Approach Path Indicator (ATG Airports, distributed by Vardhman Airport Solutions) |
|---|---|---|
| White intensity | 20,000 cd | — |
| Red intensity | 14,000 cd | — |
| Green intensity | 11,500 cd | — |
| Effective range | 6.6 km | — |
| Battery autonomy | 8 hours | — |
| Power supply | 110/230 VAC | — |
| LED lifespan | 60,000 hours | — |
| Operating temperature (Class 1) | −30°C to +55°C | — |
| Operating temperature (Class 2) | −55°C to +55°C | — |
| IP rating | IP67 | — |
| Dimensions | 780 × 600 × 500 mm | — |
| Weight | 2.8 kg | — |
| Standards | ICAO | — |
| Configuration | — | 4-unit (PAPI) or 2-unit (APAPI) |
| Unit spacing | — | 9 m |
| Runway edge offset (nearest unit) | — | 15 m |
| Nominal glideslope | — | 3 ° |
| Colour transition band | — | ≤3 minutes of arc |
| Beam width | — | 30° ICAO wide beam |
| Acquisition range (daytime, met vis 7.4 km) | — | 19 km |
| Series circuit compatibility | — | 6.6 A, 8.33 A, 12 A, 16 A, 20 A |
| Voltage transformer options | — | 240 V / 120 V, 50/60 Hz |
| Compliance | — | FAA AC 150/5345-28, FAA 880/881, ICAO Annex 14 |
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