Optimisers and ac300

Hi I live in north of UK and need to make the most of any sun we get so I wanted to know if you can use optimisers with Bluetti ac300 and if so what type would be best at the moment I am using 4x 400w panels 3 in series and the single one I am hoping to get 2 more 400w in the future so 2 x 1200w I start to get shading fom a large tree in afternoon and other bits of shading hope someone can help thanks.

I live in the SW USA California and I don’t get the Sun I need. I am going to put 10 200 watts panels on the roof. Never get enough Sun