Xenon bulbs D1S, D2S, D3S and D4S: differences and replacement
Xenon bulbs provide a powerful white light and are used in the headlights of many mid-range and high-end cars. When it's time to replace them, choosing between D1S, D2S, D3S and D4S can be confusing. Here are the main differences.
What do the letters and numbers mean?
The letter D stands for "discharge" - a gas discharge lamp. The letter S stands for a projector (lens) headlight, and R stands for a reflector. Odd numbers (D1, D3) are bulbs with a built-in ignition unit, and even numbers (D2, D4) - without it.
- D1S - 35 W, 85 V, with built-in igniter.
- D2S / D2R - 35 W, 85 V, without igniter.
- D3S - 35 W, 42 V, mercury-free, with igniter.
- D4S - 35 W, 42 V, no mercury, no igniter.
Signs that xenon bulbs need replacing
Xenon rarely burns out suddenly. Usually the light fades, the color turns pink or purple, the bulb flickers or goes out after a few minutes. Then it's time to replace it.
Color temperature
Factory bulbs are around 4300K - with the most useful light. 5000-6000K options give a whiter, more modern color. Higher values (8000K and up) look bluish and reduce visibility in the rain.
Replace xenon bulbs in pairs
The old xenon bulb changes color over time. If you replace only one, both headlights will glow in different shades. That's why xenon bulbs are replaced in pairs.
Safety when changing
Xenon systems operate with very high voltage when ignited. Before replacing, turn off the ignition and lights. Do not touch the glass of the bulb. If you are not sure, have the replacement done by a service center. You can read more about the technology on the website of PHILIPS.
Where to find the right type
The code is written on the bulb itself. You will find it in the store D1S xenon bulbs, D2S / D2R и D3S from OSRAM and PHILIPS.
What to check before ordering
Check the code on the old bulb, not just the manual - some cars have different headlights in different versions. Also check if the headlight is a lens or reflector. If the bulb does not light up after replacing, the problem may be in the ballast (ignition unit), not the bulb.
If in doubt, send us a photo of the bulb on Viber and we will help you choose the right model.
Frequently Asked Questions
Can I put xenon in a halogen headlight? No - this is blinding and is not allowed. How long do xenon bulbs last? Typically 2000-3000 hours of operation.
Conclusion
Xenon bulbs are easy to choose once you know the code. View all models in the category xenon bulbs with delivery with Econt and BOX NOW.
