[GlenTheMachine]

Hard to tell what the weight is, of course. Judging from the size of other objects in the picture (the lift point and the connectors) it's very roughly around four cubic feet. Which is actually pretty awesome; the equivalent solar panels would be significantly larger.

[jacquesm]

According to a NASA pdf the thing weighs 1150 Kg or thereabouts.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/201700...

[red75prime]

Heat sink for space operation will be quite large though.