Advice Required - New Solar Panels for AC300+B300K

Had limited joy with a single Bluetti PV200D Panel*

So, looking for a Plan B (or C).

I was going to start with 2x or 4x when pairing my Bluetti AC300+B300 K power station with some of Renogy’s latest innovative bifacial 220-Watt 12-Volt monocrystalline solar panels.

Any concerns about putting all 4x panels on a DC1?

Or would I need to attach 2x on each of the 2x DC inputs (DC1+DC2)

Cheers
Zum

*swapping out as only IP65, and says shouldn’t use in the rain :roll_eyes:

Not committed to the Renogy bifacial 220-Watt 12-Volt panels.
Happy to listen to alternatives? (UK-specific)
Would be mounted on the roof of a south-facing extension.
Ideally, plan to mount 2x 200W 75cm by 150cm (approx) panels end to end

Z