2 Answers. Yes, you can use the simple adapter. If you read the tiny fine print on the plug end you see "110-240V 50-60Hz" which means it will work on most common electrical systems around the world without a transformer.
Since the iPhone is capable of charging with both 110 volts and 220 volts, new accessories solve the problem at hand, which is plug shape compatibility.
In order to supply power to the iPhone using the Italian power outlet you'll need to buy a Type L USB power adapter and a USB to Apple 30 pin cable - this USB cable is typically supplied with your iPhone. First you'll need to plug the Type L USB power adapter in the Italian power outlet.
Apple products, such as your iPhone, iPad and laptop, are dual voltage, therefore you do not need a converter to use your Apple device anywhere in the world.
Voltage Converters. Most American-made electrical appliances work at 110 volts. If you want to use it elsewhere, you'll need a converter. If you see something like “INPUT AC 120/240 V 50—60 Hz 1300 W,” then your device is dual-voltage, and you can safely use it for voltages anywhere between 120 V and 240 V.
When traveling with an iPad, iPhone or Apple device you simply need to bring the correct adapter plug for the country you are visiting. Apple products, such as your iPhone, iPad and laptop, are dual voltage, therefore you do not need a converter to use your Apple device anywhere in the world.
All USB cords carry the same 5V, regardless of if it's got a 30-pin head or a microUSB plug, whether it's first-party or third. Because they have consistent, standardized voltage, USB chargers need another means of putting more power (in terms of watts) into larger gadgets faster.
If you plug an 110V appliance in 220V outlet (same as 120v to 230v, 240v) you can only hope that some protection device disconnects the power to the appliance. Otherwise: It is current that is your enemy, a piece wire that is warm at 110V (120v) will turn into a fuse at 220V (230v, 240v), all other things being equal.
If there is condansafor that says 400 volts at begining which cable get in the box it is probably 220 volts. Beside what guys have said, the device may have no specifications or you may not have an experiance in electricity in general. If your country “supports 110v” just plug in your device.
Small electronics, razors, and non-heating appliances will need a 50-watt converter. Heating appliances such as dryers, irons, coffee makers, and other high-powered electrical devices need converters up to 2000 watts.
USB Input (Fast Charging): Newer Samsung phones themselves can accept “dual voltage” in their charging ports. While most phones charge at 5V and 1–2.4 amps (~10 watts), some Samsung phones can accept 9V and up to 1.6 amps (18 watts) or even 12v at 2.1 amps (25 watts).
If you plug a 220V device into 110V outlet, it will normally last a little longer before it dies. But: An AC mechanical drive may fail to start, or it may take up more current than it is designed for, and eventually burn out. The insulation is usually not a problem unless there is a major flaw in the design.
When traveling to Europe, one of the most important things to bring is a power converter, as the wall sockets are much different than in America. There also aren't as many outlets in hotel rooms as in the U.S. because electricity is very expensive in Europe. Remember: an adapter plug doesn't convert the voltage.
It can effectively prevent personal electric shock accidents. For a 220V to 110V step-down voltage converter, the internal power transformer is toroidal type, its raw materials are insulating, and it built-in protection device, the voltage converter is safer in application.
In fact, the majority of mobile devices, tablets and laptops have battery chargers that can work on 220 volts used in Europe and countries in the world, as well as 110 volts (the US). If your mobile phone is dual voltage you still need to use a plug adapter, but not a voltage converter.
In most of the world, household outlet voltage is 220 volts. In the United States and neighboring countries, however, household outlets run at 110 or 120 volts. This can pose a serious problem for travelers. Connecting a 220 volt appliance to a 110 volt outlet can damage or destroy the appliance.
If your device doesn't support dual voltages, you'll need a converter. The plug for your charger should tell you if it's able to work at both voltages. The charger on my phone, for example, reads "Input: 100-240V AC." That means I can use it in practically any country without a voltage adapter.
Expatriates or long-term visitors to the United States, Canada and parts of Latin America who arrive with 220-volt appliances cannot use them with 110-volt local current unless they are converted. Rewiring an appliance or device or installing an internal transformer is almost impossible.
In fact, the majority of mobile devices, tablets and laptops have battery chargers that can work on 220 volts used in Europe and countries in the world, as well as 110 volts (the US). If your cell phone has dual voltage you will see something like “Input 100 – 240V, 50 – 60 Hz.”
Many common persovonal devices--like an iPhone charger, laptops, and cameras--that people like to travel with can be easily powered up abroad with a simple plug adapter because they are dual voltage devices. Plug adapters do not convert electricity; converters do that, but you won't need one for a dual voltage device.
This means that you will not need a converter or transformer but just a travel adaptor, because the USA operates on a 120V supply voltage, which is within the 110-240V range that the dual voltage appliance operates on.
Later model Dell laptops have power supplies rated 110 - 240V, so you won't need a converter since power in the Philippines is 220V but the plug may not match, which means that you may need a power plug adapter like this one to be able to plug it in.
Travel Tips Video
Plug your device into the travel converter, and turn it on. Let it run at its maximum setting for several minutes, while checking the travel converter for heat. The converter will warm up, but if it does not become unduly hot to the touch, it is working normally.USB Input (Fast Charging): Newer Samsung phones themselves can accept “dual voltage” in their charging ports. While most phones charge at 5V and 1–2.4 amps (~10 watts), some Samsung phones can accept 9V and up to 1.6 amps (18 watts) or even 12v at 2.1 amps (25 watts).
Plug adapters (or travel adapters)
They do not convert electricity. They simply allow a dual-voltage appliance, a transformer or a converter from one country to be plugged into the wall outlet of another country.If you plug an 110V appliance in 220V outlet (same as 120v to 230v, 240v) you can only hope that some protection device disconnects the power to the appliance. Otherwise: If you plug a 220V device into 110V outlet, it will normally last a little longer before it dies.
dual voltage? Hi, Normally you can use your laptop around the world with normal household voltage (electricity). But to be sure is to be sure, please turn the charger up-side-down you should see 110V-240V on its label.
For these devices, all you need is a plug adaptor so you can use a US plug in an Italian outlet. If the wording says "110 volts", then contact the manufacturer for advice. If your gadgets have dual voltage, you'll just require the adaptor that will allow you to plug into the electrical outlet.
