Surge arresters for photovoltaic panels


I hope someone can help me.

I am being told that on my 4 panels feeding my Bluetti AC300 I need to put surge arresters to prevent the Bluetti from lightning strikes.
On each string I have 80V and 1090W.

What do you think?
Can it be put in or does it create problems for the Bluetti?

Attached panel data sheet.
Model 545W

I have surge arresters on the AC wall plug to the Bluetti units. The solar panels should be grounded at the panels so I do not put surge arresters on the DC line to the Bluetti.

Do you think it is enough to connect the photovoltaic panel frame to the ground?
Can it not enter through the photovoltaic wires into the house and do damage?