We want a light that will help when we're pulling the car into the drive. I think DH has got it in his head that you can have ones that come on at the beginning of the driveand will sense your car before it turns in, IYSWIM.
As far as I can see, you have a choice between solar lights (those spike type things) that would go along the drive and be on all the time in darkness and a light attached to the house which would only be useful once you were already in (ie. they wouldn't help you judge the opening to the drive).
Or, perhaps the magic thing that DH wants does exist. Do you know ?