Review on 🌍 Universal Travel Power Adapter - 4 USB Ports - Works in 150 Countries - 120V - Type C Type A Type G Type I - UK Japan China EU Europe European - By SublimeWare by Adam Boudreau

First of all, this is a power adapter, not an AC converter. If you plug it into a 120V outlet, the output will be 120V. If you plug it into a 240V outlet, the output will be 240V. Many electronic devices in the US allow this. For example, if you connect the power supply for the American MacBook Pro or iPhone to 240V, then everything will be fine. On the other hand, your razor or hair dryer will most likely burn out right away. Okay, back to the review, this is a well-designed adapter that plugs into outlets in the US, Europe, Australia, or the UK. You can then use four USB ports, two of which are Smartports and all supply at least 2.1 amps. The two smart ports depend on the USB device to provide power based on feedback from the device; Some USB devices can request a certain amount of current, but this depends in part on the internal workings of the power supply, so your mileage here may vary. In any case, all four USB ports can be used simultaneously and I've had no trouble charging two iPads and two iPhones at the same time, all with good charging speeds on par with what I'd get from an iPad charger (larger, instead of the small cube that comes with the iPhone). You can also plug in the power cord at the same time, so while charging my four USB devices I was able to plug in my MacBook and there was no problem there either. The built-in adapter does not have a grounded outlet, so US three-prong power plugs cannot be used without a separate adapter. The entire device can handle 660W at 110V, so the vast majority of devices you're likely to transport around the world will work without a problem. The adapter lights up with a small orange light when switched on (the color and intensity corresponds to an old-fashioned neon light switch). The whole device comes with a small zippered carry case. Overall, it's a lot easier to use than the adapters I usually carry around the world, with the main benefit being that I can leave my bunch of USB chargers at home, too. The device is well designed and once you figure out which lever to press to get the appropriate fork and how to toggle between your options, you're done. Before leaving the country, it is advisable to quickly read the instructions on a sheet, since their use is not necessarily intuitive.