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the problem is that the cells have high internal resistance, so the more current you get from it, the lower yhe voltage you get.
so if you need 110 or 220 voltes, you will have to do a quite complicated citrcuit.
Have you considered using an inverter?
You would need batteries inbetween the cells and the inverter because the power from the cells will fluctuate with sun light levels. What kind of appliance were you trying to power ?...