ABSTRACT
There are an increasing number of high quality pico-solar products available on the market, designed to function for many years. As with any industry, however, there are also many lesser quality products being sold which, at their worst, fail after just a few weeks of use. This chapter discusses product quality and provides an overview of the various standards, quality marks and product classifications which exist. It goes on to discuss different tests which can be carried out to assess a product’s overall quality.
