Hi - thanks for your responses - I can turn up the volts and watts - I did not explain it very well.I get the best taste results from the lowest settings on my mvp, that is why I wondered about even lower voltage that might be available on other power sources.
It might be the K1 itself that is like this - if I turn up the volts and watts - and I have tried all settings - I get plenty vapour but less taste - you would think it would be the other way round I think I will invest in the nautilus mini and see if that helps.By the way the K1 is really good on the low volts it is a good value tank.If only the coils lasted longer.