Do not purchase this product in an attempt to go "green" or to demonstrate the possibility of solar power.Product comes in a cheap cardboard box. Inside you are asked to cut the plastic parts yourself!! You are supplied a tube of glue to stick together the ill fitting parts!! And you guessed it, my wind turbine also did not work. This product is the worst item I have ever seen associated with a German manufacturer, if I were Amazon I would be ashamed to have this item for sale on my website.