For the iPhone 8 and above (including iPhone SE 2020), paired with a QC or PD wall charger, it’ll charge your phone at 7.5 Watts.
For all non-Apple Qi compatible devices, it’ll charge your device between 5 to 10 Watts (with a supported device and a QC or PD wall charger), depending on the device. For specific wireless charging wattage input information, please check with the manufacturer of your device.
Please note, as wireless charging is impacted by the temperature of the room and the device (CPU load) as well as battery management algorithms, charging durations vary more than for cable charging. As a reference, wireless charging times for iPhones can vary from 3 to 4.5 hours for a full charge.