Power supply is of course the sun.
Sunlight is concentrated using this 1.8 kilowatt (max) parabolic solar cooker we found on Amazon. Manufacturer ratings say it'll achieve 700-1000° C (1300-1800° F) at the focal spot.
It's light enough for one person to move, but at nearly 5 feet in diameter (59") it can be a bit cumbersome. Moving it with two people may be more comfortable.
It was fairly intuitive to assemble, though the instructions weren't easy to follow. It was pretty obvious it was written by someone whose first language was not English.
When one focuses it there is a bit of play in the mechanism which can be a bit of a problem when it's breezy. Take care on windy days. Mine got blown away once and banged up the mirror film a bit, though it didn't seem to affect its performance significantly.
Here is the link to the solar cooker. You can find others. As long as they are the same 1.5 meter diameter they should work well.
