Also in this product the rating and the price was the purchase criterion for me. My old voltage transformer made the sliding tackle last year. To use the new Power Converter will however only come on holiday. In our multimedia world you have to have 230 V can offer in the family car. Would, however, be picky in this evaluation. When unpacking, I noticed the same on the socket. Let himself be moved. Could a bit of solid fixed his (hair-splitting) The case makes a good impression. A function - LED I had really missed my last unit - now I have it, yes! Laudable I find way to change the connection cable. 1x for 12 V socket, 1x for terminals on the car battery. These connection cables are fixed but with eyelet terminals on color-coded M5 screws on the rear panel. The mother hand is indeed secured with plastic to the touch, but still a few millimeters metal remain free in the eye. A short circuit would theoretically be made possible. Distance from the two M 5 screws approximately 22 mm. I keep that thing anyway. With a few centimeters tape, or a deliberate pitch the theoretical risk is to get a grip. Otherwise, after receipt of delivery (was accustomed fast) down to the basement - terminals directly to a car battery - 135 W Orbital Sander - runs without a murmur. Get out the car plug into the cigarette lighter - beeps unit and red LED lights - orbital sander on. OK therefore tested overload function. Nevertheless, no current. 100W consumers connected - again nothing. Auto start: At 100 W it works - the fan jumped on quite quickly. (Although I have to confess my 100W consumers was a quick -. The soldering iron sucks naturally powerful current) Still managed the voltage converter 135 W sander via the cigarette lighter anymore. Conclusion: If you want more quality - must spend more maintenance. For my twice a year with low consumers as NDS / Mobile / Car DVD Player (maximum consumption when all run simultaneously about 70W) it is sufficient.