I plugged it in the DDT both flashes and and the fan was spinning (view images) , therefore i believe it works but I did not do any further testing i don't know anything about amp they are from erecycling center. I WILL SELL THEM ONLY AS SEEN AND DESCRIBED NO EXTRA CORD, please advice, no return.

Comedically there are tear and wear outside the casing please view the scratched and more on image.