400v bulb = output voltage of the ballast, that has nothing to do with input voltage.Gavita says the 240 v ballast will fire up the 400 v bulb
Shit I would be fine making just 60k and doing that as my job. Then again I live in Humboldt county and grow as a hobby with a main job. People say when you depend on it for a living you can get pretty tired of them at times.So that we can better understand your intentions is there a set budget you have to cover the cost of build out, and expenses til making profit. 6700 sq ft would be quite expensive to build out and it would also require extensive knowledge and research of licensing, compliance, how to structure the business, taxes, ect.
The investment it would take to build out and maintain the entire 6700 Sq ft. facility until profitable would be an unwise investment without hiring a consultant and some other professionals (lawyer, accountant, ect.) Tax issues, business structuring, pay roll, and licensing are all issues that are different than most traditional businesses.
Now if you wanna build out a smaller area and see how it goes and scale up, the kind of money it takes to do that could be worth the gamble.
There is one more obstacle to overcome. Its if you can find someone to run the garden since you don't seem to have experience. To get a good grower motivated to go work for someone else it's gonna take a considerable salary. I guess if you hire the right consultant he could train your staff and set standard operating procedures and maybe be on call for issues.
You are incorrect with your math.you just need to take one hot wire and a neutral
voltage between 2 hot wires= 400volts
voltage between 1 hot wire and neutral = 240v
thats what you need
like renfro said 400v is meant to run machine with synchrone motors, in this case you dont need no neutral wire
im no electrician but i think its pretty basic
ideally you want to balance the amp loads between the 3 phase
exemple = take 15 amp on the first hot wire, another 15 on the 2 nd and 13amp on the 3 rd ..
not 50amp on 1 hot and nothing on the others
I don't really get tired of growing, sometimes I get tired of a particular run and wish could just move on to the next.Shit I would be fine making just 60k and doing that as my job. Then again I live in Humboldt county and grow as a hobby with a main job. People say when you depend on it for a living you can get pretty tired of them at times.
You save on amperage though.The only thing 3 phase power does better than single phase is running large motor loads. Thats it. Thats the only reason to have three phase power unless you are a distribution network.
Cutting Amps and upping volts doesn't 'save' anything. Here's an example:You save on amperage though.