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Sorry, that's nonsense. The resistance of the atty being fixed (a bit of a simplification, but it's independent of the battery) the power and the current across the coil(s) depends directly on the voltage.

If you have a variable voltage device it holds the voltage (and therefore both current and power) through the coil steady even as the battery's output voltage drops, just as much as 'variable wattage' does.

(The current through the battery is a different matter, but again it's the same in both cases - variable wattage devices are just cleverer at helping you get the right constant voltage)

No disagreement here (though I have a ZMax rather than a Vamo... closer to the Provari but only in its crappy usability)

Please don't call it a law. It's a draft for the Council stage of a proposed directive which, if it became a directive would prompt a national law.

Variable wattage adjusts the voltage relative to the resistance of the attached atty so that the same (more or less) power is dispensed whatever you attach.

The power is what is converted from electrical form to others (primarily heat) so is the best electronic measure of how much juice is getting vapourised per second.

Signed, despite my reservations about also being represented by a (smaller) industry-funded lobby group.

Please also give @lindamcavanmep some stick on Twitter - she is a liar, pure and simple

I've a real worry about the branding of 'Totally Herbal' too - I get asked often enough if I'm vaping 'herb' without them muddying the waters further

It does make you think that maybe Royal Mail have a point