Patrick, a bit of advice... when you call people's shit purple ignorantly, and realize you're wrong.. recognize you made a damn mistake instead of bragging about your shit. It makes no sense at all. "Not purple???? look at my HPS!!!"
It's not purple.... and you're wrong about the whole "how far you have to keep it to the canopy" thing. That's based on the lamp designer, not inherent to LED. It's like choosing 400W HPS or 1000W HPS. They have different sizes. You were ignorant. Be less ignorant if you're going to keep talking, or please shut up.