This pair of D3S Xenon HID bulbs are a direct replacement for your standard bulbs. These will only fit factory fitted Xenon HID Kit. Will save you £££ on dealer prices. We have had customers call us up saying the dealer wanted £120 for 1 bulb! Factory colour temp is usually 5000K but these are also available in 6000K (Diamond white), 8000K (Cool blue) & 10000K (Deep blue) 12 Month Warranty 12v 35W as standard UV Cut Quartz Glass Excellent quality with the Metal constructed base Murcury free (The difference to D1S bulbs) .