220v to 110v plug adapter 7 years experience to do this product Efficiency: 82 % CE cerifificate; 3 ... Application: 50 gallons of pure water machine;11,The adapter has over loading protection,over voltage protection ,over current ... power supply,adapter,led driver,transformer please don't hesitatet to contact us and welcome to our factory Skype:gezhengpower ACT 220v to 110v plug adapter for EU US AU PLUG ...