422 and 535 Independent S/L Btys went to the Mediterranean Theatre, landing in Sicily after the Allied landings (Operation Husky). By September 1943, when Eighth Army launched its invasion of mainland Italy (Operation Baytown), 422 and 535 S/L Btys were defending its bases at Syracuse and Catania respectively. 422 S/L Battery disembarked at Bari in late December as part of 25 AA Bde. The port had suffered a disastrous air raid on 2 December, and 25 AA Bde was sent to take over and strengthen the AA defences of the vital base area. While US and Italian searchlights covered Bari itself, 422 Bty deployed 24 lights at nearby Barletta. By late 1944, 535 S/L Bty had followed the fighting as far as the port of Livorno, which it defended through the final winter of the war. There is an unconfirmed report that 422 S/L Bty provided 'artificial moonlight' for night operations by I Canadian Corps. 422 Independent Searchlight Battery was disbanded on 24 August 1945, and 535 Battery on 15 April 1946.