I noticed an interesting nuance. The Bambu Lab P1S printer works from 110V and 220V outlets. But the consumption is very different. And this is beneficial for those who bought American charging stations and use them as UPS. from the 220V outlet - maximum consumption 1100Wfrom the 110V outlet - maximum consumption 350W

source - of the bamboo lab wiki That is, the EcoFlow River 2 220V will most likely not be able to power the printer when it is warming up and all that. But the American version 110V - yes. I have a step-down converter from 220V to 110V. So the circuit works:printer -> ecoflow 110v <- step-down converter 220 to 110 -> 220 outlet.