I was looking to get the HLG QB 100 for my tent but they sold out of the 3000k on amazon for right now. I wanted to get a new light before next week since I just flipped to flower but they only have the 4000k on amazon at the moment. Just wondering if I should hold out for the 3000k or get the 4000k now so I can use it asap? I just don't want to get the 4000k and have my plants not get the light they need to flower.
Personally I prefer 4000k you still get lots of red but the peak is at 600nm while 3000k peaks at 640nm and has more red spectrum beyond the 640nm compared to the 4000k however with the 4000 you have a nice peak at 450nm. If you want a "fuller" spectrum I would use the 4000k
Buy a 4 pack of the qb120 on Amazon in 3k if you can,it's the same board used basically and you can run more than one if you get a decent driver,is recommend the mean well 185h-1400ma,can run all four boards.