Product Overview
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Osram 58777 6.6A/150T4Q/64354/EWR/DL Airfield Lamp - 150W 6.6A T4 GY9.5
The Osram 58777 6.6A/150T4Q/64354/EWR/DL is a specialty tungsten halogen airfield / airport lamp designed for demanding runway, taxiway, approach, and airfield visual guidance systems. OSRAM airfield lamps are engineered for precise filament alignment, reliable optical performance, and maintenance-sensitive airport lighting applications.
This catalog-listed lamp is rated for 150 watts and 6.6A airfield circuits. Thelists a T4 bulb, GY9.5 base, 4,000 lm, C Bar 6 filament, 1500 hour average rated life, 39.1 mm LCL, and 56.5 mm MOL.
Wattage 150W Airfield |
Current 6.6A Series Circuit |
Base GY9.5 Lamp Base |
Lumens 4,000 Catalog |
Life 1500 hrs Avg. Rated |
Product Overview
OSRAM airfield lamps are used in complex optical systems where aviation safety and visual guidance are critical. These lamps support approach, landing, taxiing, and take-off lighting systems where correct lamp position, current rating, base type, and optical geometry must match the fixture design.
For airfield maintenance, the most important buying criteria are the ordering abbreviation, product number, wattage, current rating, base, bulb shape, LCL, MOL, and fixture compatibility.
Technical Specifications
| Brand | OSRAM |
| Product Number | 58777 |
| Ordering Abbreviation | 6.6A/150T4Q/64354/EWR/DL |
| Application | Airfield/Airport |
| Wattage | 150W |
| Current | 6.6A |
| Bulb Shape | T4 |
| Base Type | GY9.5 |
| Lumens | 4,000 lm |
| Filament | C Bar 6 |
| Rated Average Life | 1500 hours |
| Light Center Length / LCL | 39.1 mm |
| Maximum Overall Length / MOL | 56.5 mm |
| Package Quantity | 30 |
| Catalog Footnotes | 58,140 |
Compatible Applications
- Runway and taxiway lighting systems
- Approach and landing guidance lighting
- Airport visual guidance and signal fixtures
- Airfield maintenance replacement programs
- Fixtures requiring the exact OSRAM product number and ordering abbreviation
Before Ordering Verify
- Product Number: Confirm OSRAM 58777 against your fixture manual or existing lamp.
- Ordering Abbreviation: Match 6.6A/150T4Q/64354/EWR/DL exactly where possible.
- Current Rating: Confirm the fixture/system requires a 6.6A airfield lamp.
- Base and Bulb: Verify GY9.5 base and T4 bulb format before ordering.
- Optical Fit: Confirm LCL and MOL because airfield fixtures rely on precise lamp positioning.
Safety & Installation Guidelines
- Qualified Use Only: Install only in approved airport/airfield fixtures by qualified maintenance personnel.
- Disconnect Power: De-energize the circuit before replacing lamps.
- Do Not Touch Quartz: Use gloves or a clean cloth when handling tungsten halogen lamps.
- Match Exact Lamp Type: Wrong wattage, base, current rating, or optical dimensions can affect fixture performance and safety.
- High Temperature: Allow lamp and fixture to cool before service.
Wholesale & Project Support
ADL Supply supports airport maintenance teams, electrical contractors, municipalities, and commercial buyers with airfield lamp sourcing, replacement verification, and project quoting.
For volume pricing, availability, or help confirming the correct OSRAM airfield lamp, contact ADL Supply at 1-800-235-3489.