BEGA 9900 Lantern Installations
BEGA's 9900 luminaire was one of the pole-mounted triangle series (as I call them). There were also similar wall-mounted luminaires produced by BEGA which looked very similar. These angular lanterns were fairly uncommon here in the UK, and were sold often with special columns (as featured in BEGA's 2004-2006 catalogue). The catalogue number was different depending on the lamp-type the lantern ran. I've listed them below (single pole-mount versions only):
BEGA 9900 - 50W mercury
BEGA 9998 - 80W or 125W mercury
BEGA 8889 - 50W or 70W elliptical high-pressure sodium
BEGA 9804 - 250W mercury
BEGA 8904 - 250W elliptical high-pressure sodium
London
These BEGA 8889s are all installed in Royal Victoria Station off Seagull Lane. I believe these run 50W-70W SON-E.