When shorted out with very low resistance, a solar panel puts out a lot of current.
It will warm up your amp meter a little.. But, because it's a
short ,
the panel voltage is super low and the total wattage is peanuts..
Current x Volts = watts..
My guess is, the panels will be a good bit warmer when connected to a dead short..
Seem logical anyways..
Here's some triac info..
http://makezine.com/projects/make-36...s/try-a-triac/