NS-2270 LED headlights

TL;DR get the original LED headlights for a quarter of the price

Caterham don't build the LED kit by themselves. Looking at videos that feature the OEM units, part number NS-2270 is visible on the optics; NS-2273 for UK. They are designed and built by NS-Sirius, in Taiwan. Sidelights are replaced by the center led strips which also act as a DRL. The dipped beams illuminate the top part of the optics, while the full beams illuminate the lower part.

As they are used on Vespa/Piaggio scooters, they are available at sip-scootershop.com A pair 'only' cost me 435€ all incl. Getting the full units from Caterham would cost ~1600€.

With the dedication of never doing anything irreversible, I didn't want to cut the side lights connectors. I've used cheap W5 adapters instead.

The NS-2270 units weigh 582 grams each, compared to the 410 grams of the stock headlights with the Philips Ultinon kits. Increasing the weight by 344 grams.

Each beam is held in place in its ring by means of 4 wire clips. As we want them horizontal, some care is required for the alignment. My advice is to do one at a time, with the other kept as a reference for the wire clips fit. After installation, the beams will be too low and need some adjusting.

Thanks again to Thomas G. for the tip about the markings.