474th Searchlight Battery, Royal Artillery was a unit of the British Army during World War II. Originally raised as an anti-aircraft (AA) battery, in which role it served during the Battle of Britain and Blitz, it also provided artificial illumination, or 'Monty's Moonlight', for night operations by 21st Army Group during the campaign in North West Europe in 1944–45.

The 51st (Highland) Searchlight Regiment, Royal Artillery was a Scottish unit of Britain's Territorial Army (TA) formed for air defence just before World War II. It later served as an anti-aircraft (AA) artillery unit in the North West Europe Campaign 1944–45, and continued in the postwar TA into the 1950s.