What is the bluest 20K MH DE bulb out there? I've read that in some cases certain 14k bulbs are more blue than 20k bulbs.
I'm running this on a Sifilgoi 1x250w+ 2x54 T5 fixture with a combined ballast.
I'm running this on a Sifilgoi 1x250w+ 2x54 T5 fixture with a combined ballast.

