Philips Ultinon Pro30221 LED headlights Easy to install These lamps are more compact than most comparable LED lamps, which makes installation easier and they also fit in cars that have less space with the headlights.Beautiful cool white colour with 6000k These lamps give a beautiful cool white light of long life These lamps last up to 2000 hours, which is up to 4x longer than standard halogen lamps despite compact construction a superior light output These lamps have a light output of 1800 lumens I get an error message when I fit these lamps?There is a possibility that you may actually get an error message as different LED ignition cables have a range in the m. Will these LED lamps fit in my headlight? the answer is simple: yes, these lamps will fit in your headlight. you may need special adapter rings to fit the lamps, and see the LED adapter rings suitable for cars and lorries. This LED set is suitable for 12V and 24V vehicles.these lamp sets have been manufactured for rally and racing purposes and therefore cannot be used on public roads.use on a closed circuit or private property is permitted.