Tamlite Bravo Lantern Installations
Tamlite Bravos were (and still are) an incredibly common design across the UK. They were licenced under countless manufacturers, so you have to rely on a small few details to narrow down the manufacturer of each. The Tamlite version has a small rectangular indent on the left-hand side of the canopy. These could run SON-T, CFL or metal halide lamps, but now an LED version is sold.
Sutton Coldfield
These examples can be sighted on the back of DJ Collectibles, on an access ramp.
Both of the bulkheads I photographed show significant yellowing, and were installed around 2014.