78 Searchlight Regiment RA(TA) formed in August 1940 with three batteries. It was reduced to a cadre in July 1943 and disbanded in September 1943.
| Aug 40 | Formed | |
| Aug 40 | 1 Anti-Aircraft Brigade | Crewe, Cheshire, UK |
| Sep 43 | Disbanded |
Batteries
| Aug 40 | 498, 499, 500 |
| May 41 | 498, 499, 500, 551 |
| May 43 | 498, 500, 551 |
| Jul 43 | 551 (cadre) |
