@Solla-topee 

Hi. Naturally, the two cameras cannot occupy the same space but they were right beside each other and the videos from which the screenshot was obtained were simultaneous. It's only one screenshot, not two; I used the Tapo app's Camera Multi View. The floor taken by Tapo C220 is clearer because its resolution is 2560 x 1440 pixels while the resolution of Tapo C210 is only 2304 x 1296.
 

My post was about the overall darkness of the C220's image and the resulting duller color balance and loss of detail in the dark areas. Maybe the screenshots didn't quite capture the difference between the two videos but maybe TP-Link could look into my observation and make some adjustments through a firmware update if they are able to reproduce my observation. I read in another review that the video images produced by the C220 are a little darker than those of other models.

Thank you for your reply.