Side-by-side
Constant Current Regulator (CCR) & Airfield Lighting Control & Monitoring System / ALCMS (distributed/integrated by Vardhman Airport Solutions) 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
Constant Current Regulator (CCR) & Airfield Lighting Control & Monitoring System / ALCMS (distributed/integrated by Vardhman Airport Solutions)
by Vardhman Airport Solutions
An integrated microprocessor-controlled series-circuit power supply and airport-wide lighting supervisory system — the CCR and ALCMS working together to maintain constant lamp current across all five brightness steps while giving ATC complete monitoring and switching authority over every airfield lighting circuit.

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 | Constant Current Regulator (CCR) & Airfield Lighting Control & Monitoring System / ALCMS (distributed/integrated by Vardhman Airport Solutions) | 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 | Constant Current Regulator (CCR) & Airfield Lighting Control & Monitoring System / ALCMS (distributed/integrated by Vardhman Airport Solutions) | NARVA Conventional Incandescent Airfield Lamp — Prefocus P28s (7669 / 7654 / 7668C / 7670C / 6936C) |
|---|---|---|
| Output ratings (380–415 V) | 2.5 to 30 kVA | — |
| Output ratings (210–240 V) | 2.5 to 15 kVA | — |
| Output currents available | 6.0, 6.6, 12, 20 A | — |
| Input voltage (single-phase) | 220–240 V | — |
| Input voltage (two-phase) | 380–440 V | — |
| Input frequency | 50 Hz | — |
| Power factor (≤10 kVA) | ≥0.90 | — |
| Power factor (≥12 kVA) | ≥0.95 | — |
| Efficiency | ≥90 % | — |
| Controller | 16-bit DSP | — |
| Communication | RS-485 | — |
| Cooling | Air-cooled, fan-free | — |
| CCR compliance | ICAO ADM 9157 Part 5 para 3.2, FAA AC 150/5345-10H, IS 12291-1987 | — |
| ALCMS compliance | ICAO Annex 14, ADM Part 5 para 3.4 & 3.7, FAA AC 150/5345-56B, IEC 61508 | — |
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