A:Answer Joe-
Although we do not have exact numbers, as we have not done measurements with our TVs, we can say that the input lag is relatively low. In fact, with the combination of 4K UHD, HDR support, a dedicated gaming mode, and amazingly low input lag, this is a great option for a gaming. There are many third party independent reviewers who have reviewed our products and the input time. You may want to check out a few of those reveiws.
-TCL US Support