【FAST CHARGE MODE】(Output 10W Max) : Only compatible for Samsung S9, S9+, Note8, S8, S8 Plus, Galaxy S7, S7 Edge, S6 Edge Plus and Note 5. From 0 to full power, our fast wireless charger takes for 2.5-3 hours. 【FAST CHARGE MODE】(Output 7.5W Max): Only compatible for iPhone 8/8 Plus, for iPhone X.From 0 to full power,just taking for 3-4 hours. 【Normal SPEED MODE】(Output 5W Max): Compatible with Samsung S6, S6 Edge and other QI enabled device. From 0 to full power, our normal speed wireless charger takes for 4-4.5 hours.