I've got one now.
So far - it is working - but not properly.
On my 1Ohm atty it say´s it is firing with 2,4V at 5Watt, but it feels like 15Watt.
I´ve measured the output with my multimeter an it says that the DC is correct at 2,4V but there is 0,6V AC too and a frequency at 27,5 kHz.