Irelanduses a large Type G power outlet with three square prongs. Ireland's standard voltage is 230V and 50Hz frequency. This is different from the voltage in the US which uses 120 volts, so you'll need to use an adapter to plug in your electronics while in Ireland. The good news is that Ireland and the UK use the same voltage and sockets Thereis a voltage difference of 230V between the wires. Either three or four wires will be connected to an electrical service panel functioning via the three-phase system. This will feature three live wires of either a black, red, brown or grey colour and a separate blue wire. There will typically be a 400V separation between the two live wires. Step#1. First, you'll need to make sure that your hair dryer or straightener is dual voltage - many are. Just check the label and look for INPUT AC 120V - 240V (or a variation of that) or a switch that can be set to 125V or 250V. If that's there, then you're set and can move on to step #2. Yinleader1000W Voltage Converter Transformer(220V to 110V, 110V to 220V) 1000 Watt Step Up/Down Converter 110/120 Volt - 220/240 Volt[VTF-1000VA] 4.3 out of 5 stars 1,277. Professionals Need: Kindle Direct Publishing Indie Digital & Print Publishing Made Easy Amazon Photos Unlimited Photo Storage Free With Prime: Prime Video Direct Howto convert watts to amps. To convert watts (electrical power) to amps (electrical current) at a fixed voltage, you can use a variation of Watt's Law formula: Power = Current × Voltage (P = IV). By working backwards, we get the equation: amps = watts ÷ volts, which can be used to convert watts to amps. Avoltage converter is built-in transformer for converting - 110v to 220v, - 120v to 240v and - 230v to 110v, - 220v to 120v etc. For your appliances working good in different countries power supply systems. Buy on View as. Sort by. Display. per page. 500 watt 110v 220v voltage converter. 500w 220v to 110v voltage transformer Thisone pictured is the Universal Adapter we recommend. Its high-quality build and wide-ranging compatibility will have you covered in Scotland and the rest of the UK in addition to over 100 countries around the world. It also has USB ports for your phone, camera, and tablet. View on Thesedays, many travel devices such as laptop, camera and cell phone chargers can operate on dual voltage. Check to see if the input voltage states something like 110-220 V or 110-240 V. If it does, this indicates dual voltage. Although most devices adjust the voltage automatically, do be aware that you may need to switch the mode to 220 volts. No3hH.