All I can say about the cal mag is that the better the led's, the more the girls seem to want!
Thanks for the compliment about the girls, I try to knowingly torture them as little as possible
No offense taken, se450 is cool with me, I'd just not necessarily make the same choice...
If you're goin with 1 se250 are u gonna supplement the light with somethin else?
I was thinking if I went with one se450, and only six plants and needed a little extra light I could remove the lenses which would throw some more light, I just wouldn't get as much penetration.. i don't know if you can tell but I have been a little beside myself in searching which lights to buy.. ahaha! all over forums and picking a lot of growers brain's on investing in lights.
But I guess it's a good problem to have. And I'm really appreciative of everyone whose helping me. So thank you for reaching out.
I'm glad you got some help, I was going to chime in, but I'm lacking in the COB knowledge as you might be able to tell!!!!
Good luck on your grow bro, I hope you get everything squared away!