Solar Panels for Mayfly

This might be a stupid question but what solar panels are compatible with the Mayfly? I understand it takes up to 6V input, but am I constrained by wattage as well? Would I risk damaging the sy

This might be a stupid question but what solar panels are compatible with the Mayfly? I understand it takes up to 6V input, but am I constrained by wattage as well? Would I risk damaging the system if I installed a 6V 6W panel like this:

https://www.banggood.com/6W-6V-266+175+17mm-Polysilicon-Solar-Panel-with-Cable-and-Border-p-1348207.html?cur_warehouse=CN&rmmds=search

Of course I would have to modify the output to a JST connector.

Thanks in advance,
James