ACUPWR (TM) AUP-150 From 110 to 220 volt 150 Watt High End Step Up Transformer - [Lifetime Warranty Made with the Finest Materials in the USA] Lifetime Warranty Designed and Manufactured in USA from the highest grade copper in the world. Safe for continuous use at 120% of the stated wattage! Accepts 200% power for short time usage. Auto shuts down on overload. Comes back on after a few minutes.