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Sorry to disappoint you, but there isn't going to be a sparky fight today, as none of my posts were intended to debate anything. I was merely trying to explain things to you in laymen's terms rather than leaving you solely reliant on one language.

Please be advised that decades ago the NEC did approve using a dedicated branch circuit to the dryer or range that used only three wires receptacle to supply 240/120 volts to the dryer and range, and bonding the neutral to the chassis ground inside the dryer or range was allowed. However that is...

On the secondary side of the pole mounted step down transformer serving your resident, the center tap of the transformer winding (which now becomes refer to as the "neutral" connection on the transformer) gets grounded to earth ground. The neutral wire feeding to your home gets grounded again to...

I would also like to clarify, just so there is no misunderstanding in my posts, that when I use the word "current" I am referring to amps. Since Boulderheads mention that he has a Sun System 1000 watts ballast, I noticed that many of the Sun System ballasts are now using what Sunlight Supply...

Yes it does seem like a moot point whether it's 110 volts or 220 volts that powering the ballasts except for the reason you gave about overloading a single circuit. I personally like to take advantage of the switchable feature of the switchable ballasts when running multiple 1000 watts ballasts...

Not going to work. First off, nothing is 100% efficient in converting energy, some of the energy used will be wasted in heat from the transformer, so you are limited to less than 7.5 amps @ 220 volts output from the transformer before tripping the 15 amp circuit breaker in the 110 volts circuit...