You can use Japanese 100V products in the region of AC 220-240V. THis has 35W rated capacity and therma protector. THe socket type is C typeIf you would like to use it for more than 30 minutes please use it only for products that has less than 24 Watt comsumption ( 80% of 35W rated capacity ) So we recommend 80% of rated capacity for more than 30 minutes use .