WRTL Stela Long Lantern Installations
Originally designed and sold by WRTL, this lantern was later sold to Philips, and subsequently continued to be sold as the Philips Stela Long. Incidentally, the Stela Long was the only lantern in the Stela family that was able to be mounted side-entry, with the other two having a fixed post-top spigot. They could feature, 10-30 LEDs. The Stela Long (as the name implies) is the longest lantern in the series, at 59.5cm long.
Birmingham
This example is on column 3 of Heneage Street West, and was pictured at night:
The lantern has 30 LEDs, and requires a post-top adaptor to fit the column.
Tamworth
The WRTL Stela Long lantern is exceptionally rare here in Tamworth. Only 3 installations exist and are known to me. This also goes for the rest of the WRTL Stela family of lanterns. This one's in a new housing estate in Borough Park, Tamworth.