Seven Star SF500 500W 110v/220v 220v/110v Step Up/Down Automatic Transformer Adapter This is a 500 watts converter for portable use. If the product is using higher or close to 500 watts it needs a higher power voltage converter. Convert 110/117/120V AC to 220/230/240V AC OR 220/230/240V AC to 110/117/120V AC Output Voltage LED Indicator, No need to set the input voltage - connect to any outlet in the world Universal Output Socket - Accept most plug types from around the world. Thermal Fuse Protection with Reset Button (No need to replace fuses)