I've always been very sceptical about claims of really noticeable perceived improvements in headlight performance by fitting enhanced bulbs, as the eye, having logarithmic performance, can just about detect a doubling of light power.

I don't drive much at night but recently I had a night journey on testing roads and was in a hurry. Not the YRV, but it could have been. This car's fairly new and the headlights have had little use to cause deterioration. The main drawback of the standard bulbs was poor kerb illumination on dipped beam with them adjusted on the dash to the highest reasonable dip setting.

The next morning I decided to buy a set of Osram Night Breaker Plus bulbs, the winners of an Auto Express comparison test and they were delivered next day from autobestbuy.co.uk,