LED headlight conversion review after fitting an H4 LED headlight PROJECTOR to a Citroen C1 headlight. Easy DIY plug n play LED headlights just by changing your headlight bulb. Road legal. 👉LED tail and brake light conversion: • Auxito 1157 Red Bulb | AWESOME LED Tail Li... These H4 projector retrofit kit first came to market about 4 years ago, but have been substantially improved since, mainly the LEDs themselves (led by OEMs) but also manufacturing techniques. H4 LED headlight projector Z6 model tested: WW 🌍 https://s.click.aliexpress.com/e/_9JjvKf H7 LED headlight projector WW 🌍 https://s.click.aliexpress.com/e/_ATWwSx ☕ Support the channel here: https://www.buymeacoffee.com/CycloneCyd ☕ 💡 Subscribe and hit that bell 🔔 to learn more about looking after your car. 0:00 LED headlight conversion review 0:22 Are LED headlight conversion legal? 0:47 How to fit H4 LED projector 2:00 How does H4 LED projector work 2:22 H4 LED headlight vs halogen 2:55 How to adjust H4 LED projector 3:51 Halogen vs LED projector headlights | on a dark road Learn more about looking after your car: 🎥 How to replace a CV [constant velocity] joint boot with a split kit: • Universal CV Boot Repair Kit | CV Gaiter S... 🎥 Don’t let your fuel filter end up like this 100,000 mile old example: • Why Should I Change My Fuel Filter | Insid... 🎥 Battery & alternator care in this playlist: • Alternator and battery care Everyone should have a tyre pressure gauge in their glovebox: http://bit.ly/Tyre_press_guage http://bit.ly/Pressure_Gauge_2 I personally prefer a stirrup pump to a foot pump (I use the same one for my bikes and cars) http://bit.ly/Tyre_stirrup_pump Are you trying to grow your own YouTube channel? I use TubeBuddy, try it out for FREE: https://www.Tubebuddy.com/CycloneCyd Gear I use in filming and production: https://bit.ly/CC_Gear My videos are edited with Filmora X - try it for free https://bit.ly/Filmora_X_try4free Thank you