Does anyone use a radium 20K HPS bulb for veg? I can't find any sort of info on it for growing like lumens, bulb life, wattage, etc. I was wanting to know the comparison in a 400 W MH and this radium. I know people say 6500 k is the ideal color temp, but thats just not true. Just because most MH's are typically around that color temp doesn't mean its ideal. My blue led works better than any 6500 K bulb. So I would assume the radium would be much better for compact growth. Anyone have any solid info rather than just guesses?