A broken light does not mean that you have to immediately buy a new bike light. With Individual lamp bulbs Easily and inexpensively replace the defective light bulb so that your bike lights work perfectly again. In this article, you’ll learn everything about individual bulbs, the different types, and how to choose the right bulb for your bike lights.
The individual lamp bulbs are spare parts for headlights and taillights. They form the light source and can — like ordinary incandescent bulbs — burn out or break over time due to vibrations or moisture.
Advantages of individual light bulbs:
Cost-saving: Cheaper than a whole lamp
Sustainable: reuse of the existing lamp holder
Quick to replace: light back on within a few minutes
Always have a backup ready: Convenient for on the go
Extends the lifespan: of your current lighting
When the light flashes, becomes weak, or stops working, it is often enough to replace just the light bulb — not the entire unit.
Frequently used in dynamic lighting and older bicycles.
Warm white light
Cheap, but shorter lifespan (100—500 hours)
Sensitive to shocks
Most common types: 6V 2.4W (information) and 6V 0.6W (rear light)
Ideal for classic bikes or those who want to maintain the original look.
The modern standard — powerful, economical and durable.
Up to 5 more light sources
Life span: 10,000—50,000 hours
Energy-efficient and impact-resistant
Bright white light
Perfect for everyday use and for those who want to ride a bike without needing a lot of maintenance. Please note that it is compatible with older lamp housings.
A mid-range product between incandescent and LED — mainly used in sports headlights.
Bright white light
Higher light output
Longer lifespan than incandescent bulb
6V: Standard for dynamo lighting (most used)
12V: for special systems or e-bikes
3V: for battery-powered lighting
Always use the correct voltage: a 6V bulb in a 12V system lights up immediately.
Introductory information: 2.4W (standard) / 3—5W (more powerful)
Tail light: 0.6—1W
Bayonet (BA): pressing and rotating fixed
Screw (E10): turn on like a light bulb
Steering fitting: easy to insert
Tip: bring your old light bulb or take a photo of the fitting for the right match.
Dynamite lamps: Simson, AXA, Spanninga, Union, Herrmans
Older battery lamps: Classic models with replaceable ball
Not suitable: Modern integrated LED or USB lights
Place the bike in a dry and stable position.
Open the lamp (turn it on or click the lens release button).
Remove the old light bulb (press/rotate or unscrew).
Place the new light — do not touch the glass with your fingers.
Turn off the light and test if the light is on.
At the same time, clean the reflector and check the seal for maximum brightness and water resistance.
| Problem | Cause | Solution |
|---|---|---|
| The light isn't on | Incorrect voltage or poor connections | Check the fitting and wiring |
| The light bulb breaks down quickly | Vibrations, moisture or incorrect voltage | Use LED or check the seal |
| Light flickering | Lost contact or bad dynamo | Check connections and alternator |
Check voltage, wattage and fitting
Choose quality (Simson, Spanninga, AXA)
Consider LED for longer lifespan
Buy now multiple lights as a backup
A completely new lamp is more sensible if:
The lamp holder is damaged or rusted
The lens or reflector is broken
The wiring has worn out
You want to switch to modern LED lighting
Keep lamp housing clean and dry
Check wiring and rubber seals
Adjust the alternator correctly
Test lighting before the winter season
Save spare bulbs dry in the original packaging
With loose bulb bulbs, you can quickly, cheaply and sustainably restore your bike lights. Note voltage, wattage and fitting, Always keep a spare light on hand. Ideal for dynamic lighting and classic bikes — a small effort that makes a big difference in visibility and safety.
Confused about which light bulb fits your bike light or fitting?
Send us a photo or bring your old light bulb along, and our team will be happy to help you with personal advice.
Please contact our Customer service for the correct replacement or to find the appropriate light bulb for your bike immediately.