I don't mean to start another WalMart Controversy but they do sell a converter with a slide switch from low voltage to high voltage with 4 or 5 adaptors for about $ 12.00. I have one and it seems to work great.
TG, think you meant the converter will switch to handle low and high wattage, not voltage. $12 is a good deal at Wallmart or you can pay $20 for the same converter at another store.
I can't believe that anyone would plug 110v appliances into 220v regardless of the wattage without a converter and not expect smoke.
I/O, I plugged a clock, not rated for the same voltage, into a socket whether it be higher or lower voltage to experiment if the clock will work, not to see if smoke will appear or not. The clock did work for 10 minutes. It took Thomas Edison 10,000 attempts to create the light bulb. He probably created smoke and small expolsions but that was clearly not his intention but to make a light bulb work under various conditions.
http://www.paniccure.com/Short_Essays/What_is_success.htmjust about anything electronic device made today, from computer to cell phone to hair dryer, accepts 110 to 240 power.
Trust, but verify the electronical info on the product. Note my clock experiment. Many products today has a built in converter for 110-240 but that is done only for ease of manufacturing making one product for all countries instead of having to customize the product for multiple countries.