110V~220V Bidirectional AC Power Transformer Adapter (80-Watt Max)

Pros: Nice gadget for console collectors like me because most of stepdown converters here in Spain are 125v instead of 110v and that produces a heatdown and more stress to power supplies.
I have measured in 220v->110v mode and mine has a constant 116v output without charge with an oscillation about 0.1v (I could not test inverse)

Cons: Only 80W
A plug converter would have a significant improve its value

Other: Good stepdown convertor for Euro users who wish to test little american/japanese electronics. Recommended

Pros: Swings both ways - can convert from 220 to 110 and from 110 to 220. The socket on the back can accept both American/Japanese and European plugs (see picture in the description) The prongs on the input side are non-polarised , non-grounded parallel blades (like in USA, Canada, Japan). Work with all us/jp sockets.

Cons: Too easy to switch incorrectly. The voltage shown near the switch is the INPUT VOLTAGE. Watch out when connecting. The prongs are American/Japanese only, so an adapter will be needed to use this in Europe. (DX sells those too). Low power (only 80W). Good for one dvd player OR one small TV, most probably not for both at the same time.

Other: One less barrier in carrying small appliences overseas. Again DO WATCH THAT INPUT SWITCH or risk badly frying the appliance and the transformer.

Pros: It just works and does the job. No less no more. And I have been using it for years without any trouble. I have left it plugged in for long periods of time but had no trouble.

Cons: The socket for the flat plug is a bit narrower than the plug of the device I use it for but a bit of forcing was enough to get it in :-P

Other: If you have a device which you have bought from a country using a different voltage mains then you can use this :-)

Pros: - it's bivolt: you can put it in a 110v to generate 220v or in a 220v to generate 110v; - it's small; - it's portable; - it has a compatible weight for the size; - it accepts round power plug or flat power plug; - the 80W maximum power is suitable for the most of the equipments.

Cons: - the bivolt feature is via a manual switch; it will be better if via automatic control.

Other: It's worth for the price, for what it do and fot the portability.