Goldsource ST500 Step Up/Down Mains Transformer 110 V ↔ 220 V, 500 VA, 50/60 Hz

INPUT: On the rear panel is a IEC 60320 mains fixed plug and a fuseholder with a 20 mm 5 A Fast Blow fuse fitted. OUTPUT: On the front panel is a 3-pin Type-G mains 'universal' socket (UK 13 A) AND a 3-pin Type-B (aka NEMA 5-15) (US 15 A) socket.

eBay