600w Lumatek vs 600w Phantom

So besides a price cut of around $40-60 which would be a better ballast. Both are hydro farm so im thinking either one should work efficiently

Whats your input?

They're both good ballasts, i've never owned a lumatek, but I hear they're great. The phantom comes with wall brackets and can be mounted vertically. And its black instead of purple.

So whichever ones cheaper is what i'd go for. For me it was the phantom.