Good - cheap - going!

Since, unfortunately, no car adapter available for my tablet (logically, has 15V charging voltage), I was looking for a simple and small as possible voltage transformers for the cigarette lighter of the car to which I connect my power supply and therefore go times the Tablet can charge.

And exactly these requirements are met this article perfectly. He is truly amazing small, fits well into the cigarette lighter and even seems to hold quite well. Still, I could well imagine that the contact with many road bumps is once separated. The device has yes, despite the small size of a certain weight, which indeed is inserted at consumers even greater and as a long lever acts - which remains an interruption of the power supply in the long run probably inevitable.

If this possibility actually occurs, a simple extension cable for the cigarette lighter would quickly remedy the situation. Thus one could stow even the whole equipment inconspicuously under the seat and thus kill two birds with one stone.

To function itself, I can only say: it works! At first I even started with simple lamps and this increased to 60 watts me - worked flawlessly. Then I finally tried my power supply for the tablet - again no problems; the tablet was as charged at the normal outlet.

Thermal problems were not observed in these experiments; the device has not even warmed noticeably. Likewise, I could not perceive noise during operation; the part works completely unobtrusive with me.

The "socket" of the device as such is definitely not to call; you have here different, multifunctional openings for probably all the plugs in the world. These are secured at rest with a kind of folding mechanism within the device, so you do not accidentally with any pointed object come to the contacts and can get an electric shock. Unsightly peculiarity of this design is the one that the plug of the consumer, of course, can not be so nice firmly plugged in, as you know from a normal earthed socket. Secondly, you should really be careful that you do not come when unplugging an "old" connector whose pins are not isolated to the back accidentally with a finger on the contact surface; that could be unpleasant. In adults, this will probably not happen earlier; with children fingers I see some risk.

Nevertheless, this design allows course only the small size and therefore the main advantage of the device; a grounded outlet alone would be greater than the voltage converter itself.

Last but not least, it should be the USB port mentioned that to the actual voltage converter function still provides an additional connection for devices that can be charged or powered via USB with 5V, so most phones, Navis, etc. The charging current is likely in this variant are emotionally higher than the usual USB adapters, ie the devices are charged more quickly; this is currently only a conjecture and has not yet been tested by me.

It goes without saying that the application for such a small device is limited to weak consumer. Who thinks they have infected his drill or a hotplate testhalber, which is not helping. 100 Watt are indicated on the converter as a high performance; Experience has shown that it is well advised, if you stay a little below this (usually optimistic) manufacturer's instructions.

Conclusion: In this size, there is nothing like it according to my research. This handy device appears wonderfully suited for small consumers and the occasional use. For those who rely daily on 220 volts for power hungry devices in the car, but should better look for a more professional device that can be permanently installed in the vehicle. Both the handling, the power output and the security mechanisms regarding undervoltage protection etc. appear expedient here.