A 220-volt plug adapter lets your device’s plug fit local outlets; it doesn’t change voltage, so use dual-voltage gear or a converter.

A step-down unit lowers 220–240V supply to 110–120V for single-voltage gear; match wattage, add the right plug, and watch 50/60 Hz.

A step-down adapter lets 110–120V gear run from 220–240V outlets when matched with the right converter and plug type.

To step down 220-volt power to 110-volt, use a step-down transformer or a dual-voltage device set to 110/120 V.

A 220V converter steps 220–240V mains down to 110–120V so single-voltage gear can run safely.

A step-down transformer sized above your device’s watts converts 220-volt mains to 110-volt output safely for single-voltage gear.

For 220V conversion, use a step-up transformer or a dedicated 240-V circuit installed to code by a licensed electrician.

A 220-to-110 step-down transformer converts 220–240 V to 110–120 V; pick a unit rated above your load and match the plug and cord style.

A step-down device converts 220-volt mains to about 110 volts so North American gear runs without damage.

A 220-volt to 110-volt adapter lets US-voltage devices plug in abroad; check wattage and whether you need a step-down converter.