1.1.1 Are these mature products or are they just funny toys?

Looking at the whole diversity of PV powered products; one might wonder what added value is there in such solar gadgets, are they really sustainable and meaningful?

1.1.2

Matching appearance of the product with the appearance of the PV cell In Figure 2 there is apparently a discrepancy between the shape and colour of the products and the shape and colour of the incorporated PV cells and panels. In the left figure the red colour of the lamp mismatches with the blue colour of the PV module, but also a rectangular PV module is put on a round object. It is less disturbing somehow in the right figure in which a round form is combined with a round PV module