You need a Step Down Converter. Here are a bunch of them:
https://www.google.com/search?client=safari&rls=en&ei=tu5mXe2qJJCUsgWPxrfgCQ&q=step+down+voltage+transformer+converter+220+volt+to+110+volt&oq=220+volt+step+down+converter&gs_l=psy-ab.1.2.0i8i30l2j0i8i10i30.11816.16509..22890...0.2..0.96.842.10......0....1..gws-wiz.......0i71j0i13j0i13i30j0i13i5i30j0i7i5i30j0i8i7i30.IhVUBbFjrhg