moanin' Volties.
VW, basically, measures the resistance of the coil and adjusts the voltage to achieve whatever wattage it is set at. VV allows you to set the voltage, or effective voltage, being delivered with no monitoring of coil resistance. There is, of course, over current protection built in so you don't fry the electronics. Due to efficiency changes, higher outputs can be achieved using a VV/VW device in VV mode. Not many, if any, actually achieve their advertised power and voltage levels over the full range of coil resistances, especially lower resistances as in under 1.5 ohms or so..
The advantage of VW is that you can set a power level, change coils, even using a different resistance, and the device will maintain the set power level. That can also be a disadvantage IF the coil/wick setup can't handle the set power level, but that's pretty quickly evident and corrected by most, LOL.
Temperature control, combined with either VV or VW is yet another variation. In the case of TC, full output is applied until the desired temperature is reached or the device is delivering as much power as it is capable of. The power is then throttled back to maintain the set temperature. Think of it like an oven with a quick heat-up feature. The advantage being that the temperature can be set to avoid burning the liquid and producing potentially toxic, or undesirable, chemicals in the vapor.,
It was a decent day yesterday, but far too windy to do any yard clean-up. Raking in the wind is pretty non-productive, LOL. It's not bad out now, mid 50's, but it's getting cloudy and supposed to rain this afternoon. I do plan on getting started on cleaning up the yard, at least until it starts raining.
