Replacement Light Bulb for NARVA 17643 Marine Navigation - 24V 21W BA15S

Replacement for NARVA 17643 marine navigation lamps installs directly into existing fixtures requiring 24 volts and 21 watts. The S8 shape with clear finish and BA15S base matches the original configuration for consistent operation in navigation applications.

Key Features & Benefits

• Operates at 24 volts drawing 0.875 amps for standard marine electrical systems
• Provides 150 life hours under typical navigation duty cycles
• S8 shape and clear bulb finish maintain original light output characteristics
• BA15S single contact bayonet base ensures secure fit in compatible sockets

Product Specifications

• Volts: 24
• Watts: 21
• Base: BA15S SINGLE CONTACT BAYONET 15MM DIAMETER
• Shape: S8
• Life: 150 hours
• Bulb Finish: CLEAR
• AMPS: 0.875

Replacement Compatibility

Compatible with marine navigation fixtures designed for NARVA 17643 and equivalent bayonet base lamps in 24 volt systems.

Discover the Perfect Replacement

Confirm voltage, wattage, and base type in your current lamp to order the correct 24V 21W S8 replacement part for continued navigation use.

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.