Voltage converters are the most common type of travel adapter. They convert U.S. appliances from 110v to the voltage used in other countries. They should be only be used for short periods of time and on small electrical appliances such as hair dryers, razors and curling irons. Travelers often have to purchase more than one converter for use with two- and three-pronged appliances. Charge phones and other multimedia devices on a computer using a USB cord when possible. This reduces the number of voltage converters a traveler has to carry.
Transformers come in a variety of different sizes and are meant for use with larger appliances or electronics that draw a lot of power. The weight is a disadvantage to travelers looking to lighten their load, but they are advantageous for business travel, where computers and other electronics are used for extended periods. Some transformers double as voltage converters and these hi-lo accessories switch between low and high wattage electronics and appliances with the press of a button.
Universal adapters are beneficial for someone who travels all over the world and needs more than a European adapter. A universal adapter is an all-in-one kit that works in 150 different countries. The kit contains a main unit that features interchangeable adapters. Users pull one adapter out and replace it with the appropriate one when needed. Match the prongs and ensure a tight fit with the main unit before use. Refer to the number on the appliance to determine which adapter to use.
Pair a voltage adapter or transformer with a power strip to charge or use multiple items at once. Purchase one that does not have a surge protector or opt for an extension cord. The surge protection along with the adapter can cause some appliances to overheat. Always unplug appliances, electronics and adapters and transformers after each use. This is an added precaution that reduces the risk of damage to the appliance..