Whitecroft Centurion Lantern Installations
Whitecroft's Centurion was an LED bulkhead, and could be purchased in 13W (1364 lumens) or 28W (2877 lumens) versions. Uniquely, it can also be purchased in an emergency lighting form, something a lot of bulkheads don't offer. The prismatic polycarbonate bowl is quite unique in shape, making the lantern fairly-recognisable.
Birmingham
These Centurions are pictured lining a building on Weaman Street.
The first lantern on the building:
The third lantern was also captured, as far as I know, these do operate at night: