Replacement for 75T4Q/CL/SC28V NAVIGATION BULB AIRCRAFT LAMP Halogen - T4 Shape BAY15S Base 75W 28V

Designed as a direct replacement for the 75T4Q/CL/SC28V NAVIGATION BULB from AIRCRAFT LAMP, this halogen lamp matches the original specifications to ensure proper fit and performance. Rated at 75W, 28V, T4 form factor, it installs into any fixture that uses a BAY15S single contact bayonet base. The 1,500-lumen output ensures strong illumination for demanding applications.

This lamp is built for the constant-current series circuits used in airfield ground lighting, where every lamp must maintain its rated output to guide pilots safely during taxi, takeoff, and landing. It delivers the brightness and reliability that aviation safety standards demand. It supports uninterrupted operation in this critical infrastructure.

Key Features & Benefits

• Produces 1,500 lumens to support demanding lighting applications.
• BAY15S single contact bayonet base provides reliable electrical contact and stable operation.
• Standard T4 form factor fits a wide range of compatible fixtures.
• Operates at 75W, 28V to match standard low-voltage circuits.

Product Specifications

• Wattage: 75W
• Voltage: 28V
• Base Type: BAY15S
• Bulb Shape: T4
• Lumens: 1,500
• Condition: Brand New

Common Applications

This halogen lamp is commonly used in:

• Multipurpose residential and office fixtures
• Specialty equipment and OEM lamp replacements
• Display case and task lighting applications
• Commercial and institutional general illumination
• Portable and temporary lighting installations

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.