Our transformers are only compatible with mechanically controlled devices with a power rating of 30W to 2300W, so please make sure they meet the above two requirements. If either requirement is not met, the device/transformer is likely to malfunction. Thank you for your understanding.  This does not apply to electronic devices with smart chips, automatic on/off, screens, timing functions, pulse functions, etc. For buyers in the United States: Import duties and taxes are included in the item price or shipping cost. Items shipped to the U.S. are sent under the Delivered Duty Paid (DDP) method, which means all import-related charges are prepaid. You don?t need to pay any additional fees when your order arrives.

For buyers outside the United States: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer?s responsibility. Please check with your country?s customs office to determine what these additional costs will be before bidding or buying.