The OSRAM ORIGINAL LINE S1 (64326) is a dual-filament halogen headlamp bulb widely used as standard equipment on scooters, mopeds, and small motorcycles. Operating at 12V with 25W on each filament, the S1 provides both high and low beam from a single BA20d bayonet fitting — making it a practical, all-in-one headlamp solution for smaller two-wheelers.

As an OSRAM ORIGINAL LINE lamp, the 64326 is built to OEM standards and is the trusted cost-effective replacement recommended for routine maintenance on the many scooters and mopeds that use the BA20d headlamp socket.

Key Features

• S1 dual-filament halogen bulb — high and low beam in one unit
• 12V 25/25W with BA20d bayonet base
• 3200 K warm white halogen colour temperature
• Compact size: 71.0 × 14.7 mm, 13.3 g
• Robust OEM-grade construction for two-wheel vibration conditions
• ECE-approved for road use
• Pack of 1 bulb

Product Benefits

• Single bulb covers both beam functions — fewer spares to carry
• OSRAM ORIGINAL LINE quality matches factory-fitted OEM specifications
• Widely compatible with scooters, mopeds and small motorcycles using BA20d headlamps
• Cost-effective everyday replacement for routine lamp changes
• Easy bayonet-fit installation — no tools required

Technical Specifications

• Manufacturer Part Number: 64326
• Bulb Type: S1
• Voltage: 12 V
• Wattage: 25/25 W (high/low beam)
• Base: BA20d
• Colour Temperature: 3200 K
• Dimensions: 71.0 × 14.7 mm
• Weight: 13.3 g
• Application: Scooter / moped / small motorcycle headlamp (dual filament)
• Pack Quantity: 1 bulb
• EAN: 4052899157774

Why You'll Love It

The S1 is the go-to headlamp bulb for countless scooters and mopeds across Europe, and the OSRAM ORIGINAL LINE 64326 delivers exactly the performance you expect — correct beam pattern, reliable filament life, and easy installation. A straightforward, affordable replacement that keeps your two-wheeler road-legal and well-lit.