66 watt fast charge refers to the charger with the mobile phone two can be opened from 66 watts, if the mobile phone does not support 60 600 charging the charger will not be able to supply your mobile phone charging 66, if your mobile phone is 66 clock, the charger is also 66 ah, fast charge are the same can be charged, is the same as the brand, If you are Huawei, Huawei is OPP