mixing spectrums?

cool, thanks pimp.

What about using 4' t12s and changing lamps at flowing? Any good?

Quote:

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Originally Posted by jimmy21

What about using 4' t12s and changing lamps at flowing? Any good?

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Quote:

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Originally Posted by Dutch Pimp

you will get less stretch, during the first 3 weeks, with 6500k...and T-12 floro tubes are about useless after that...IMO.

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you could use them for supplemental lighting i suppose.


-shake

If you change to 2700k you get 3000 lumens of 2700k flouresent light. What's the difference between that and 2 2700k 27 watt cfls?

change what to 2700K? where do the 3000 lumens come from?

with the CFLs you're gonna get ~3200 lumens (depending on the output, obviously.


-shake

change from 6500k to 2700k depending on vegging or flowing.

what im saying is you guys say 4' t8's are worthless during flowing, but i don't see the difference between 2700k flouresent light from a cfl or 2700k flouresent light from a 4' t8 lamp





i checked my electrical supply house and t8s come in 3000k and 7300k



3000 lumens is the output of a 32watt 4' t8 lamp. So a 4' tandem t8 is putting out 6000 lumens. almost as much as 4 27watt cfls








am i wrong in my thought process?

Quote:

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Originally Posted by Dutch Pimp

you will get less stretch, during the first 3 weeks, with 6500k...and T-12 floro tubes are about useless after that...IMO.

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the comment was about t-12s. and IMO = In My Opinion. so dutch was giving his thoughts.

my guess is dutch doesn't like the t-12s because they are so big you can't get as many close together as you can t-5s.

sorry to put words in your mouth dutch. please slap me if wrong and share!


-shake

I agree 'shake

T-12 floros are very weak. Excellent for the first 3 weeks with seedlings. After that, T5 or T8 high output floro tubes are needed; or CFL's or HID. IMO. If you want serious buds.

For some reason I read t8s. Ya t12s are junk. But since we are on the topic.â?¦. What would be the ideal kelvin temps? We use 2700k and 6500k because that's what cfls come in. But t8s don't. The lowest I could get was 3000k and then there was no 6500k. Just 5000k 7300k 7500k and 8000k


What would be best?

where are you looking for these bulbs at? i know you can get 6500K, t-8 bulbs at walmart. and i'm pretty sure they have 2700K (might be 3000K, or they might have both, haven't looked in a while) bulbs as well. they say it right on the front of the package.


-shake