Fireworks are beautiful, but not when they are erupting from your favorite mobile phone, MP3 player, or laptop. More than a few unfortunate travelers have found out the hard way that the voltage in Asia, as with much of the world, differs than what we use in the US.
Fortunately, most manufacturers today are savvy enough to create devices that are ready for international use. Read on to find out how to avoid making your own fireworks display.
Different Voltages in Asia
A majority of countries in the world -- those in Asia included -- use a 240-volt electrical infrastructure; twice the voltage coming from outlets in the US. Devices not intended for this voltage level most certainly will not survive even a tentative plug in.
Japan, an exception, relies on a 100-volt system -- close enough to our 110-volt standard that most devices will operate fine.
How to Check Your Device Voltage
Transformers (the bulky black box found at the end of your cord) are required to have their operating range stamped on the outside. The labeling should read something like:
INPUT: AC 100V-240V~1.0A 50/60 HZ
A device marked with the above or similar will work just fine in the US, Europe, and Asia. If you do not see 240V indicated somewhere on the device, do not try to use it in Asia without a travel power converter. If in doubt, try checking the manufacturer's website to look up your device's technical specs.
Most laptops, chargers, and other devices work with the voltage in Asia, however, they tend to get hotter more quickly.
Outlet Configurations in Asia
While many electronic devices today can handle a wide range of voltage, the problem lies in the lack of a standard for power outlets throughout Asia. The two-prong, flat-bladed plugs found in the US are not always easy to find in Asia. Indonesia uses the same square-plug configuration found in the UK, while some of their neighboring countries favor the round, two-prong plug style common in Europe.
Fortunately, travel power adapters are light and inexpensive. While adapter "kits" can be purchased with an array of plugs to use, a better option is to pick up one universal eveything-to-everything adapter. About the size of a typical power transformer, these lightweight adapters allow you to connect any device anywhere in the world.
Some travel power splitters, outlet strips, and USB chargers have built-in surge protection which may not be rated for 240V. Check the rating before you use them!
Some hotel receptions will provide power adapters for free.
Voltage Converters and Step-Down Transformers
Not to be confused with power adapters which only change the physical plug, voltage converters are active components and actually step the voltage down from 220 volts to a safe 110 volts. If you absolutely have to use a device in Asia not rated for 220 volts, you will need a voltage converter.
When purchasing a step-down transformer (Buy Direct), check the output wattage (e.g., 50W). Most produce enough output for chargers and small devices, but may not be powerful enough to power hair driers or larger appliances.
Voltage converters are heavier and more expensive than simple travel power adapters.
Unclean Power in Asia
Some developing countries and islands in Asia do not have "clean" or reliable power. Many islands run on generator, which when started and stopped produces a spike on the power line. Power surges and sags can be hard on delicate electronic devices such as laptops.
If you are not sure how clean the power is in a remote area, avoid connecting your devices and leaving them unattended. When you see the lights change in intensity, pull the plug!
