It's okay. Apple 8 and Apple 11 series chargers are the same, the two series of chargers can be interused, but the model of the Apple 8 mobile phone charging head is A1443, which is an ordinary charger that supports 5W, and the Apple 11 series, such as the Apple 11 pro max mobile phone is standard with 18W fast charger, but the Apple 8 does not support fast charging. Still slow charge.
Yes, the iPhone8 supports 18w pd fast charge