60 * 7W = 420W
Lets keep this simple, so maybe you can follow: you are saying these 1.2 TH machines have ~60 coincraft A1s?
If they have substantially less than 60 chips, there is no way for them to hit that power efficiency based on Bitmine's spec, and may I assume you would then agree with me they are deliberately deceiving their customers?
And if you do think they have 60 chips, in what world would they not provide cooling and power to enable the 1.5-2.4 TH their machine should be capable off, as per bitmine's spec?