... /output over high or low protecting; low battery protecting; surge and pike-currents protecting; overload protecting 100%-120% 30sec; >120% ... protection Automatic self-test, discharge protection, over-charging protected, smart management system. Appearance External Size(mm) D×W×H388*145*210Size ( ... the certificates of ICE61215, ISO9001, UL,VDE, TUV, CE and so on If any questions, feel free to contact us ...