Guys, the Inda-Gro spectrum is advertised to be generated from over 12 phosphors, while standard "Kelvin" rated (2700K, 5000K, 6500K) light is typically generated from a tri-phosphor blend. They explain everything in pretty good detail on the website... They even display a graph of their "Inda-Gro" spectrum alongside representative graphs of other standard "Kelvin" rated spectrums... I also posted these graphs on Page 2 of this thread, and Wheezer again on Page 3... The PRO 100 PAR, PRO 200 PAR, and PRO 420 PAR contain the "added Red Phosphor Blend", which I would recommend having... (Their older Pro Series 400 Watt Induction Grow Light EHBOD-400W does NOT have the "added Red Phosphor Blend") I don't understand why you cannot find pricing, all you have to do is click
"Products" and there they all are listed with specs and prices with "Buy Now" Google checkout links...
Even if you went with the older/cheaper Pro Series 400 Watt Induction Grow Light EHBOD-400W ($680), you would be better off IMHO than any other induction light that is Kelvin rated 2700K, 5000K, 6500K, etc.. because this light still has the Inda-Gro spectrum (minus the added Red Phosphor Blend)... but for another $115 you can get the PRO 420 PAR with the Red Phosphor Blend...