There are many wonderful and unique things to do and to see in France. One of the most curious for me was the use of the very distinctive yellow headlights on cars in France about 20 years ago or so.

Ready-made wiring harness and relay kit makes it easy to add relays to a motorcycle headlight. Adding a relay can improve headlight output, reduce load on switches and allow higher wattage bulbs to be ...

Our test of 10 H4 halogen bulbs reveals that the high-beam reach of the worst bulb is 60 metres shorter than the best bulb tested. Worryingly, half of the bulbs didn’t meet the minimum required ...

There is a baffling array of different aftermarket bulbs to choose from today, with prices ranging from a few quid to more than £35. So here we consider whether it’s best to go for the latest, ...