Main features:

• Base: BA21d
• Type: Lamp with 3 lugs (positioned in a triangle), base diameter 21 mm
• Power: 45/40W
• Voltage: 6V
• Dual filament: For dipped and main beam headlights

Overview:

This BA21d bulb is equipped with a dual filament to provide both dipped and main beam functions in a single headlight. It is easily recognizable by its 21 mm diameter base with its 3 lugs positioned in a triangle, offering a unique and secure attachment.

Applications:

The BA21d lamp was widely used between the 1940s and 1970s to equip a variety of 6-volt vehicles, including:

• Cars: Vintage and classic vehicles.
• Motorcycles: Vintage and classic models.
• Tractors: Old agricultural machinery.
• Scooters and mopeds: Historic light vehicles.

Why choose this bulb?

• Authenticity: Perfectly suited for vintage vehicles.
• Unique design: Base with 3 lugs offering precise and secure installation.
• Reliability: Dual filament for optimal dipped and main beam lighting.

Restore your old vehicles to their original brilliance with the BA21d 6V 45/40W 500609 bulb, designed to meet the specific needs of vintage lighting systems.