The last time the decoration in the home to a small voltage to a small electronic device charging, but the direct use of the power socket would most likely because the voltage is too large to damage the electronic equipment, you need a adapter to convert the voltage, we go to the supermarket to buy a adapter shop carefully I was introduced to the role and use of the adapter, said the function of adapter is to convert the voltage, current, according to our needs, the voltage of high voltage 100-240V, is converted to a voltage 3-120VDC we need to go back, after using adapter, the small electronic devices connected to the power supply to normal charging also, no damage to the device, we are really very happy.