From what I saw on ebay tho, £150 doesnt seem to get you Hi/Lo Xenons, which I guess youd be after, these are $300-$400. And will they plug straight into a Renault wiring plug, I doubt theyd stock Renault stuff. Much more likely to be North American domestic models/high end German/Jap only.
And are the 10,000k+ legal over here? Some of the pics of the lights do look very purple, its illegal to have anything but white coming from the front of your car isnt it? (I know the likes of Vauxhall Omegas HID are very blue mind)