Energy added to what is fixed for a solar module necessary?

nazen question : What is a set of solar cells requires I'm just a scientific experiment on solar panels?. The experiment is testing, in which the direction of a solar module will receive the most sunlight. I need four solar panels for you. I would also need something, how much energy a solar module gets determined. And where I could have solar panels? Thank you! In addition, the size of the solar system would I need to get (customs, V, mA). I would also, if someone give me a link where I can

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