Fog lights bulb - HB4?

[zafira]

I am thinking to change to LED bulbs in my fog lights (vectra 07) But I am not sure if its HB4 bulbs or 9005? Someone knows? And whats the differents of those?

Thanks
ket

[Das]

Are they not H3 bulbs, the ones with the small wire on the end of them?

[zafira]

No, its HB4 og HB3, the one with the "base" on the back to plug the contact. Every place I read it said H3. But its not. Its a OPC line (XP in UK). Is it special fog lights on this?

[Grumpy1954]

normal bulb should be H3, led bulbs don't tend to do well on the Vec.

[zafira]

It looks like this. But HB3 and HB4 looks the same. I think LED will be nice for daytime use.

[husky]

im sure fitting LEDs will also bring the check warning on telling you that you have a bulb out

[zafira]

Is the check control conected to fog light also?

[husky]

Is the check control conected to fog light also?

had the bumper of a Facelift Signum the other day and started the car and came up fog light left and right fault so im guessing yes

[zafira]

Ok. Thanks. I will check for some bright halogen bulbs then.

[zafira]

But I still need to know if its HB3 or Hb4