One Way Voltage Converter 220/240V to 110/120V AC - 200 Watt Review

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(More customer reviews)Be very careful when approaching the load limit (200 watts) of this transformer/converter. After roughly two hours with an 181-watt (1.51 amp) load, one of my transformers overheated, melted, allowed a full 230 volt output surge for several seconds, and then blew the circuit breaker in my house. The unit remained extremely hot for several hours afterwards. In the meantime, I checked the load (which was resilient enough to be undamaged) with a Fluke multimeter to ensure it did not exceed 200 watts. The load remained steady at the level specified.
That said, the other two transformers purchased are performing admirably in less demanding, low wattage, applications. I'm temporarily residing overseas. Since it gets tiresome toting around (and expensive buying) larger transformers for every little task, the compact size and low price of this transformer is well appreciated.
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DETERMINING TRANSFORMER REQUIREMENTS FOR THE DEVICE YOU INTEND TO USE
After reading several reviews, it appears some do not understand the limits of transformers/converters. This small transformer is intended low wattage items, such as a small laptop or netbook, battery charger, small kitchen aid, electric shaver, and similar.
It is not intended for high wattage items like hair dryers, clothing irons, heaters, toasters, other household appliances, power tools, multiple items at the same time, and so on. Use of such high wattage items with this transformer will result in damage and could potentially cause injury or fire.
To determine the electrical input requirements of the 120v device you intend to use, look at the product label on that device. That label will express the input requirements in either watts or amps. The device plugged into this transformer should not exceed 200 watts or 1.66 amps - the input numbers should be equal to or lower than 200 watts or 1.66 amps.
If the input requirements exceed those numbers, use a larger transformer (qreater or equal to the numbers on the device) instead of this one.
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Actually, based on my experience described in the first paragraph above, I'd personally recommend not using devices exceeding 150 watts or 1.25 amps. Even then, it would be wise to carefully monitor devices approaching those numbers for a while to ensure they will continue to operate safely.

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