Hello, I can't find out exactly what this ballast is, it does not even have a model number. it has stylized words that look sort-of like a logo that say "Whole Grow" but I've googled, altavista, hotboted and yahooed and can't find a manufacturer or model number for 'Whole Grow" It seems an oxy-moron to call this 'WholeGrow" when the very next "words" on the label say LAMP: HPS wouldn't you think 'Whole Grow' means it would use both bulbs? SO the label says this: Whole Grow 400W /120V, LAMP:HPS input voltage 120v 50/60hz Working Voltage 105v - 160v Input current 2.20A Rted 425 Watt pf > 0.99 THD < 8% the housing has a light green paint or anodized. I'm hoping someone has had one of these and knows what it is I have done a bunch of searches and do have an understanding of the differences of analog, electronic, and e-ballasts, and the different electrical needs of the MH vs. HPS but all I want to know is who makes this damn thing?