Yes, I have looked at all of those, but they no not offer switchable to 400, 600, and 1000, they use higher amperages. Also, the Galaxy has lower power use. Apparently it has recently been redesigned.

Then, I got to comparing actual output compared to magnetic and things fall off. Did you notice that? Do bulbs keep their intensity longer like many claim?

I want to reduce either with bulb or dimming early output, I don't need to put 1000 watts on one plant .... yet..... I expect I will need it for the Thai. That also frees up a magnetic switchable 400 ballast that I can use blue spectrum on a day by day basis by switching bulbs in the flower room. I don't want to give as much blue, just a few days per week.

So. This is where I am headed. I just don't see what I want with the others yet. I can actually see ans touch the Galaxy and Lumitek at the store. If I am missing something, please tell me.

You sound like you really notice the heat difference and in summer that could mean the difference to running A/C or not.