Product reviews for 110V to 220V Step Up Transformer 100W MAX 3x3x5 Inch with Next Working Day Delivery 

Use your UK or European electrical appliances rated up to 100W in the United States, Canada and Mexico. Next working day delivery to the UK. Please note that we cannot accept returns of this product if you have blown the internal fuse. This happens when you use appliances rated over 100Watts 100VA. Perfect for low current items such as hair straighteners, tongs and mobile phone chargers. The 100W transformer has a United States 3 pin plug and a UK socket. Simply plug your device into the 220V UK socket on the front panel and switch it on.