Sugar scoops: H4 conversion, relays, 80w Hella halogen bulbs
Euro appearance: euro H4 housings, relays, 80w Hella halogen bulbs
LEDs may be "plug and play" (meaning no relay required), but I've yet to see evidence they outperform the halogen setups identified above on vintage 911s. See
https://911bestinclass.com/pages/beta-test-1-of-osram-night-breaker-h4-led-bulb