I recently received this device, and after playing around with it, I found out something interesting about it. Most vv/vw mods I have used have a limit on them so that no matter how high of a voltage you select, you can not put out higher than the maximum selectable wattage. This is not the case with he E-Mech. I can't find my multimeter, but you can hear and feel that this is the case. i have a .7 ohm coil build on it, and it clearly is putting out more power at 6 volts than its maximum wattage of 30 watts. I first discovered this when trying to get a twisted build right and it took forever to heat up at thirty watts and heated up faster at 6 volts. Does anyone know of any other mods that function like this?