Thanks for the reply.

Would the Halfords bulbs you quoted Halfords (HBU472UB) Ultra Brilliance Car Bulb - £25
be better than these bulbs from EuroCarParts? Philips Headlight Bulb (Xtreme Vision H4 472 Bulbs - £25
Or these which are cheaper? Osram Headlight Bulb (Nightbreaker UNLIMITED - Performance Bulbs - H4 472 - £17

Just want a decent set which will give good viewing clarity,distance and value for money