47 (The Durham Light Infantry) Searchlight Regiment RA (TA) formed in August 1940 by the transfer of 47 (The Durham Light Infantry) Anti-Aircraft Battalion Royal Engineers (TA) to the RA. The Regiment served in 7 Anti-Aircraft Division in the North East of England until converted to Light Anti-Aircraft. 47 (The Durham Light Infantry) Searchlight Regiment RA (TA) was converted to 112 Light Anti-Aircraft Regiment RA in January 1942. It was re-constituted as 582 (The Durham Light Infantry) Light Anti-Aircraft/Searchlight Regiment RA (TA) in January 1947.
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.
| Aug 40 | Formed from 47 Anti-Aircraft Battalion Royal Engineers | ||
| Aug 40 |  |
7 Anti-Aircraft Division, 43 Anti-Aircraft Brigade | North East England |
| Dec 41 | |
7 Anti-Aircraft Division, 57 Light Anti-Aircraft Brigade | North East England |
| Jan 42 | Became 112 Light Anti-Aircraft Regiment |
Batteries
| Aug 40 | 386, 387, 388, 389 |