You can buy it on Amazon:
https://amzn.to/3kVtUFF (Apple 20W)
https://amzn.to/3M3bmiC (Apple 18W)

If you wanna buy the tester of POWER-Z, you can visit our Amazon store: Click here.

Introduction
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Over these years, Apple released 18W and 20W fast chargers for iPhone and iPad.
And the appearance is almost the same.
So, what's the difference between those two chargers except for the 2W.
Today, ChargerLAB is gonna answer it. Let's go.