Osram 58988 6.6A/45T4CL/64318-A 45W 6.6A T4 PK30d

Osram 58988 64318 A 45-15 — 45W 6.6A Airfield Halogen Lamp, 3000K, PK30d Base | FAA Approved

The Osram 58988 (64318 A 45-15) is a 45-watt, 6.6-ampere current-controlled tungsten halogen airfield lamp from Osram, engineered for series-circuit runway, taxiway, approach, and airfield visual guidance lighting systems. With a PK30d base, T4 bulb, 6.8V nominal voltage, 3000K color temperature, 800 initial lumens, C-8 filament, 16mm LCL, 50mm length, and a 1,500-hour rated life, this FAA-approved lamp is designed for precise optical positioning, vibration resistance, and reliable performance in demanding airport lighting applications. Dimmable. Mercury-free. Sold in cases of 100. Verify product number, current rating, base type, LCL, and MOL against your fixture specification before ordering.

Technical Specifications

Product Overview

The Osram 58988 (64318 A 45-15) is a 6.6A current-controlled halogen lamp engineered for airfield series-circuit lighting systems. Airfield lighting operates on constant-current series circuits — all lamps in the circuit carry the same 6.6A current regardless of circuit voltage. The lamp's wattage and lumen output are determined by current regulation, not voltage regulation, and the exact lamp specification must match the fixture design for correct optical performance and circuit compliance.

Vibration-resistant construction maintains consistent light output in demanding airfield environments. IR radiation emission provides guidance capability in low-visibility conditions and supports defrosting in cold-climate airfield applications. Dimmable design allows light output reduction when required by air traffic control protocols. Mercury-free construction simplifies airfield lamp disposal and environmental compliance. FAA approved in conjunction with many OEM fixtures.

For airfield applications, optical dimensions are safety-critical. The LCL (16.0mm) and total lamp length (50.0mm) must match the fixture's designed lamp position exactly — deviation from specified dimensions affects beam geometry, intensity distribution, and visual guidance system performance.

Compatible Applications

• Runway and taxiway edge lighting — Series-circuit airfield lamps for 6.6A runway and taxiway guidance systems.
• Approach and landing guidance lighting — Precision airfield lamps for approach lighting system (ALS) fixtures.
• Airport visual guidance and signal fixtures — Airfield visual docking guidance and signal lighting applications.
• Airfield maintenance replacement programs — FAA-approved OEM-compatible replacement for scheduled airfield lamp maintenance.

Before Ordering — Verify

• Product Number: Confirm Osram 58988 against your fixture manual or existing installed lamp.
• Global Order Reference: Match 64318 A 45-15 exactly where required by your maintenance program.
• Current Rating: Confirm the fixture and series circuit require a 6.6A airfield lamp.
• Base Type: Verify PK30d base matches your fixture lampholder.
• LCL: Confirm 16.0mm Light Center Length — airfield fixtures rely on precise filament positioning for optical performance.
• Length: Confirm 50.0mm total length fits within your fixture lamp housing.
• FAA Documentation: Verify FAA approval status for your specific fixture model with the fixture OEM before installation.

Safety and Installation Guidelines

• Qualified Personnel Only: Install only in approved airfield fixtures by qualified airport maintenance personnel.
• De-energize the Circuit: Disconnect power from the series circuit before lamp replacement. Series airfield circuits carry high voltage — follow all applicable NFPA 70E and airport safety protocols.
• Do Not Touch the Quartz Envelope: Use gloves or a clean lint-free cloth. Skin oils cause hot spots leading to premature failure.
• Match Exact Lamp Specification: Incorrect wattage, current rating, base type, or optical dimensions will affect fixture optical performance, circuit operation, and aviation safety.
• Allow Cooling: Allow the lamp and fixture to cool before servicing.
• Approved Enclosed Luminaires Only: Use only in fixtures with appropriate protective shielding to contain lamp parts in the event of bursting and to prevent UV radiation from escaping.

Compliance

• Mercury-free. No PCB.
• FAA approved in conjunction with many OEM airfield fixtures — verify with fixture manufacturer documentation.
• Contains lead (REACh Candidate List substance — CAS 7439-92-1). Safe use per Osram SCIP declaration.
• Verify applicable FAA Advisory Circular compliance with your fixture OEM and airport maintenance documentation.

Ordering Information

• Brand: Osram
• Osram Product Number: 58988
• Global Order Reference: 64318 A 45-15
• EAN / UPC: 4008321345516
• Wattage / Current: 45W / 6.6A
• Base: PK30d
• Packaging: Sold in cases of 100.
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

For wholesale pricing, bulk availability, or help confirming the correct airfield replacement lamp, contact ADL Supply at 1-800-235-3489.