How many watts do I need for a laptop – and other solar power questions?

Hi there,
I’m trying to get a very basic understanding of solar power.

Can you tell me:
How many watts is required to run a laptop off power
And how many, roughly, to charge the laptop battery
how many for an mp3 player
a cell phone: simple -> smart range
a table lamp
a ceiling fan
a floor fan
a window a/c

Just want to get a feel for it!

Thank you in advance!


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