85 Searchlight Regiment RA (TA) was formed in January 1941 with four batteries, at Blackhall, St Giles. The Regiment served in 8 Anti-Aircraft Division of Anti-Aircraft Command until conversion in early 1942. 85 Searchlight Regiment RA (TA) was converted in March 1942 to 132 Light Anti-Aircraft Regiment.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Jan 41 | Formed | St Giles, Oxford, UK | |
| Jan 41 |  |
8 Anti-Aircraft Division, 64 Anti-Aircraft Brigade | South West airfields, UK |
| Oct 41 | |
8 Anti-Aircraft Division, 55 Anti-Aircraft Brigade | Plymouth, Devon, UK |
| Mar 42 | Became 132 Light Anti-Aircraft Regiment |
Batteries
| Jan 41 | 520, 521, 522, 523 |