On spanwires. Daytime close-up see here.
These are modern and yet very good quality luminairs. The ones pictured here are full cut-off (flat glass). The lighting is very even and the glare is pretty low, which means they are quite pleasant to the eye.
The optics are suitable for both coated elliptical lamps and clear tubular ones at the same time (according to Siteco). Here they are always fitted with coated lamps (I prefer coated ones anyway).
These are probably my favorite modern luminairs.
This picture gives a good impression of what it looks like in person.
Taken using a tripod, exposure time: 6 seconds.