Trowbridge station has had its car park improved and new LED lighting installed. The lanterns are black and a look like a shorter and bulky version of the Urbis/Schreder Teceo.
They may be the new shape version of the OrangeTek TerraLED, however their website and images online only show the original version of the TerraLED. Mazeteam had some images of the new version fitted to concrete columns, but these are no longer showing on the forum.
Interestingly each lantern has its own PIR sensor which looks very much like a standard domestic sensor.
I have now identified these lanterns as
DW Windsor Kirium LED lanterns.
They are also in use on many stations on the ECML, including Potters Bar, Peterborough and Doncaster.
This double bracket is at Peterborough.
Close up, the bright section between the LED panels and the column side of the lantern is actually sunlight illuminating a ventilation slot in the top of the canopy with the light visible on the underside.
None of the installations spotted on the ECML used the integral PIR sensors as seen at Trowbridge.