150W Voltage Converter Travel Adapter, Power Converter AC110V/120V to 220V/240V Step-Up & Down Voltage Converter Transformer

I bought 2 and they work to up convert 120(110) to 240(230). I got them to run a pair of Focal studio monitors purchased in Europe. The speakers are able to play up to VERY uncomfortable sound levels without any sign they are not being supplied enough power, even when playing deep bass. They have never gotten noticeably hot while under heavy use. I can't say these are recommended for their current use, but not sure I would try this with the lesser model. There is no line noises usually associated with with a "dirty" or improperly grounded power source. They're very heavy, but fit advertised dimensions. 2 of them will dominate most power strips and might completely consume a wall outlet so nothing else can be plugged in there with them.

Super heavy and it was hit or miss. It depended if it charged or not.

does not work, and it heats up very much. there is some smoke smell coming out of the outlet when i plug this in.

The power seems to be insufficient. I use it to connect a 220v 3D TV(45w in use), and the TV sometimes flickers.

it’s a little bulky but served my purpose