Hello, I had promised Waeco much because I run on my boat a cold machine of the company without any problem. Unfortunately, I am totally disappointed by the device. Although I have only connected a notebook (approx 90 watts), the inverter runs very restless, he would make every moment limp. He also intended to provide 230V. I have measured only 205V at 13,1V input voltage. Had me better the Belkingerät bought, I had a trial basis by an acquaintance. Since these antics are not occurred. Conclusion: The device is not also recommended for best benevolence!