Illuminated Fins !

Hey all

Was wondering if anyone knows wat bulb is fitted into the illuminated fin lights (not too sure if that's wat their actually called)

Seen this on YouTube and it's wat I'm looking to do but don't know wat bulb type

Enter into YouTube search :
BMW LCI E60 Illuminated Fins Project Demo Video 2

these arent done wit oem headlights

Yeah it was thinking tat, had a good look at my own head lights, pity it's a nice mod