I am in need of some new t5 bulbs and i am a little confused about what type to get. When looking at actinics I've seen different nm's for sale and was wondering what the difference is for coral, and visually between 420nm and 460nm?
460 is blue 420 is more purple I believe
Also i was wondering, since my t5 fixture can hold 8 bulbs, what combination of 12000 K lights and actinics should i use?
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