In the UK vehicle headlamps are designed for driving on the left-hand side of the road. This means that when driving on the right-hand side in Europe your headlamps will shine into oncoming traffic. This can dazzle other road users. To combat this, when driving in Europe you must convert your headlamps to avoid dazzling other drivers. This is a compulsory requirement in most European countries. Before you drive on the continent, ensure your lights meet the legal requirements by using beam converters at all times (inc rain, fog etc). You will need to remember to remove the beam converters as soon as you return to the UK. These beam converters are suitable for use on most standard headlamps.This patented design has been developed using Heat Mirror Foil technology to reflect heat and UV back into the lamp reflectors. They are suitable for most vehicles and includes individual fitting diagrams for over 800 vehicles including the latest 'Clear Glass Headlamps', 'Projector', 'Xenon,' and 'Glass Line Pattern' headlamps inside the packaging.