Not at all, it doesn't need direct sunlight :) The panel will keep the rechargeable battery topped up, so it should be good to leave in place for a long time.
It is a newer model, but it is more basic than the other in the range. Unless they came with a new Eco, which means is newer than the old Eco :D . I've stopped looking at their models about a year ago, after I've got my Pro. Which is still in the box...
A bit misleading of Amazon to put the link to the Eco model as a 'newer version' (confused)
Voted hot, good deal, decent brand.
This is the Pro model as far as I am aware. The one you mentioned is the Eco model, newer model, but it was always cheaper than the rest from the Argus range. It is the budget model of the Argus range. I think the difference in price was about £20-25 in between the 2. I did some research on Argus models, but this was at least a year ago, so I forgot why the other models vs Eco stand out. Two things I do remember. The viewing angle on Pro is better, and I think the Eco does not have a removable battery. I know I had a choice to pay £10 less for the Eco, but I went with the Pro model. I believe both are at a very good price now, I am looking for the solar panel and never seen it for under £20. I can see it now at £19.