All 2700K CFLs for flowering?

S

sway

Active Member
Is it optimal to use all 2700K CFLs for flowering? Or is it better to use a mix of 2700K and 6500K CFLs? If it's better to use a mix, what's a good ratio? 1:1?
 
L

lightweight

Well-Known Member
Considering the topics I have seen on hps/mh combo and cmh(wide spectrum) grows, a mixed spectrum certainly doesn't hurt BUT those lamps are high output whereas most cfl's are weak sauce.

Some say all red. Some say 2:1 red heavy. Some say 3:1 red heavy. I'm currently experimenting with 2 42w 2700k and 1 45w 4100k on a 12/12 from seed.

Just get the highest lumen output red lamps you can find. If the 4100k wasn't greater than or equal to my 2700's I wouldn't have bought it.
 
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