So as you are aware, there are quite a few factory fitted xenon bulbs.

D1S – which has an igniter connected at the base.

D2S – Which needs to connect on to a harness.

D4S -  A new incarnation of the D series bulb – whats so special about the D4S bulb?

Well the D4S bulb is designed with the ‘environment’ in mind, it has no mercury, as such, the D4S bulb is ballast specific, meaning that the D4S bulb will only work via a D4S ballast. It is worth pointing out at this stage that the D4S bulb looks like a standard D2S bulb, however, you cannot simply replace a D4S bulb with a D2S bulb, as the D2S bulb will just not work.

Autolights is now offering D4S bulbs at a very competitive price, and all prices are for pairs.

Click on this link for more information

Common myths that surrround the factory fitted xenon bulbs are: do not purchase them because your it may damage your ballast – this is false!

If you purchase good quality, D1s, D2s, D3s, D4s factory fitted xenon bulbs, then you have nothing to worry about. At autolights we are offering factory fitted xenon bulbs for as little as £30 a pair as opposed to 80-110 per bulb, and as for the quality of our  D1s, D2s, D3s, D4s factory fitted xenon bulbs, they look and feel better than their Philips or Osram rivals, and they perform in the exact same manner.

To have a look at our  D1s, D2s, D3s, D4s click this link