Yes those are basically Dahua cams.
Unfortunately I seem to recall folks coming here with those cameras asking if there was Dahua firmware available for those models and there wasn't a comparable Dahua camera for sale.
In recent years Dahua was making and selling Lorex and Dahua models that were unique to those brands to prevent people from buying a cheaper camera and flashing Dahua firmware on it, coupled with hardcoding the units there had a comparable Dahua equivalents from accepting Dahua firmware.
Have you tried using Internet Explorer? I am pretty sure at least the first two are capable of adjusting iframes.