-- No, it's not.
The fast charge logo is usually a shape composed of two arrows, and the fast charge logo is generally a shape composed of four arrows. The two lightning bolt symbols are more likely to indicate that the device is compatible with an earlier version of fast charging technology, such as Qualcomm Quick Charge 2.0 or earlier, which is 3 times slower than the latest fast charge technology, and only uses 5V charging, rather than the latest fast charge technology can use 9V or 12V. Fast charge technology usually has four modes that can provide a maximum input voltage of 3A and provide a maximum input current of 18W, which allows smartphones to be charged quickly in a short period of time.
1 is not fast charging
2 The lightning symbol indicates that the Apple device is being charged
3 If you are using the Apple original fast charger, the lightning symbol will change to \"lightning\" during charging, indicating that the fast charger is being used for fast charging.