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30 watts wireless charging is equivalent to 30 watts wired
The actual output of 30 watts wireless charging is greater than 30 watts of power.
There will be energy loss when the wired charging head is input to the wireless charger, and the actual conversion efficiency cannot reach 100%.
Therefore, the actual input power of the 30 watt wireless charger is greater than 30 watts in order to ensure the wireless charging power of 30 watts.
Wired charging is 40W, wireless charging is 27W.