FSP127 Replacement Bulbs – 12V (D1721) and 24V (D1754) Spare Signal Lamp Bulbs – 60W APFDC for Aldis Lamps

These 60W APFDC bulbs are designed for use with the world-renowned FRANCIS Signal Lamp system, including the FRANCIS FSP127 / MK 5 ALDIS Lamp. Fully MED / SOLAS type-approved, they are ideal for keeping your ALDIS Lantern and Signalling Lamp reliable and performing at their best—ensuring your signalling equipment stays dependable when you need it most.

Key Features & Equipment Benefits

• MED / SOLAS Approved Equipment: Ensures compliance with maritime safety regulations for reliable use on vessels.
• 60W APFDC Bulbs: Provides powerful and consistent illumination for long-range daylight signalling.
• Francis Searchlight Compatibility: Designed specifically for FRANCIS FSP127 / MK 5 Aldis Lanterns and other Aldis Signal Lights.
• Quick and Easy Replacement: Simple to replace, keeping your Aldis Lantern and signalling lamp fully operational.
• Durable Construction: Built to withstand harsh maritime environments, ensuring reliability even in challenging conditions.
• Long-Lasting Performance: Designed for extended use, reducing the need for frequent replacements.
• Clear Signalling in Maritime Conditions: Delivers bright, focused light ideal for ship-to-ship communication using Morse Code.

Technical Information:

• Voltage Options:, 12V (D1721), 24V (D1754)
• Power Rating: 60W APFDC (Alternating Pulse for Direct Current)
• Bulb Type: Incandescent filament bulb