markc5

Last year the OS bulb stopped working and Citroen fitted a new one, part No 66250. Now the NS bulb when the lights are first switched on glows white and then shortly after glows like a standard fitted car bulb (same when full beam is on). The one Citroen changed still glows white though. I did get the NS bulb changed but the new one did not glow white so it was removed and the old one put back. Does anyone know if this means the bulb is on its way out or could it be something else causing it to shine like this. Am I right that I would need 4300k ones for them to glow white if it is the bulb? Any help would be greatly appreciated.