IMHO these bulb units represent good value for money compared to some other kits available and come with tools to assist with fitting which is straight forward if a little involved, you have to remove the front wheel arch liner so end to end will take you about an hour but unless you have a newer BMW there is nothing you can do to get around that. Performance is great, they are bright in daylight and very bright at night and the colour is a good match to the xenons making the front lights more cohesive and current. Service and delivery from Horizon has been good. All in all, I'm happy.