Voltage is quite accurate (about +/- 0.3V). It works flawlessly so far with my notebook. I had to buy an adapter for my specific notebook, which has to be considered. With normal to higher use it gets reasonably warm (about 50-60°C). I disassembled the device to see if the quality meets my expectations (see photos attached). It is built quite solid and I did not see any dangerous design flaws or manufacturing problems so far. Despite I doubt that it has a correct CE certification due to the fact, that some main voltage parts have small clearances and the PCB between the main and low voltage part is not milled out. But I would buy it again for that reasonable price (but I will place it in sight at least for the beginning). I hope the durability will also satisfy in the future and I have to test if heavy load will also be no problem.
Voltage is quite accurate (about +/- 0.3V). It works flawlessly so far with my notebook. I had to buy an adapter for my specific notebook, which has to be considered. With normal to higher use it gets reasonably warm (about 50-60°C). I disassembled the device to see if the quality meets my expectations (see photos attached). It is built quite solid and I did not see any dangerous design flaws or manufacturing problems so far. Despite I doubt that it has a correct CE certification due to the fact, that some main voltage parts have small clearances and the PCB between the main and low voltage part is not milled out. But I would buy it again for that reasonable price (but I will place it in sight at least for the beginning). I hope the durability will also satisfy in the future and I have to test if heavy load will also be no problem.