6500k

I havnt had any experiencs but ive read some where that they wont grow properely without antinics or a higher kelvin rating.
 
I havent had much time to note a significant difference in growth using 10k vs 15k vs 6,7k. I however will be trying to document the amount of growth under 6,7k for posting later.

I've read that growth is faster, but can attest to color being worse.
 
The growth should be great, if you supplement it with a lot of actinics you should get incredible growth and good color.
 
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