Flowering with T5's.....I know....it's been covered...but I have a specific question.

lilroach

Well-Known Member

• Apr 30, 2013

• #1

I have been searching for good threads regarding flowering with 2700K T5 HO bulbs, but the most I could find is using the 6500K for flowering AKA fluffy buds and low yield.

Has anyone grown and harvested weed flowered under the 2700K?

 

M

Mattemil

Active Member

• Apr 30, 2013

• #2

I am into flower 2 weeks right now so cannot really give a good report yet.

 

clayman187

Active Member

• Apr 30, 2013

• #3

daylight cfl's I believe are 4800 to 6500k for veg.....2700k is used for flowering
Im in my 4th grow with cfls ..cant say Im a pro but I have turned ot some decent bud

 

hyroot

Well-Known Member

• Apr 30, 2013

• #4

Get 2 UVL Redsuns and 6 Zoo Med Flora Suns. Those will flower great. Produce better quality and denser buds and pull higher gpw than hid.


https://www.rollitup.org/indoor-growing/358190-led-without-leds-my-first.html


Most 2700k only have red around 610 nm...almost useless. You want full Spectrum. Ie flora suns.

 

lilroach

Well-Known Member

• Apr 30, 2013

• #5

I currently have (2) four-bulb 2" T5HO grow light fixtures with 6500K's in 'em. Do you suggest that I run with a blended light spectrum vs. going totally 2700K or your redsun's?

 

hyroot

Well-Known Member

• Apr 30, 2013

• #6

Yes. The flora suns are full spectrum and largest peak at 660nm redsuns are 630nm mostly. For veg I found the 5400k from htg work best. I currently have one going with 2 redsuns 2 flora suns and 4 5400k. Will be swapping 2 more flora suns in. I'm experimenting with the 5400k. I'm following led leads. But I know t5's kelvin bulbs are not full spectrum like white leds.

Drfostersmith.com - flora suns

Marine depot or hello lights - redsuns.

 

lilroach

Well-Known Member

• Apr 30, 2013

• #7

Do you find the common complaint of fluffy buds and low yield goes away with this set-up?

 

Jimdamick

Well-Known Member

• Apr 30, 2013

• #8

I used 2700k t5 VHO for bloom and had great results. The VHO t5 produces more lumens than a HO, so I'm not sure if my answer helps.

 

karma4life

Well-Known Member

• Apr 30, 2013

• #9

Hey man I'm flowering using t5s now I'm a little more thana month into flower check out my thread https://www.rollitup.org/led-other-lighting/628687-first-t5-scrog.html

 

lilroach

Well-Known Member

• Apr 30, 2013

• #10

There's no problem running a VHO in a HO fixture?

 

V

Valron

Well-Known Member

• Apr 30, 2013

• #11

I use a blend of both. 4/4 blue/red under an aeroponic system... havent had a yeild yet but im flushing in 2nd week about to harvest...My buds are rock hard !

 

hyroot

Well-Known Member

• Apr 30, 2013

• #12

Do not use vho bulbs. They run twice the wattage and last half as long as ho. I get tight dense large buds with my spectrum mix. 0.8 - 1 gpw is my usual yield. Lumens mean nothing to plants. The more yellow and green there is the higher the lumens which plants only absorb 20% of yellow and green. .. lumens. By definition is visible light to the human eye. Its all about par umole/s watts/m2.. Lumens has no place in growing. It only applies to flashlights, headlights, etc...


I have a few journal entries with t5 but I was using Fiji purples then instead of flora suns.

 

DeeTee

Well-Known Member

• Apr 30, 2013

• #13

Been growing with T5 HO for yrs now, 6500K for veg and 3000K for flower and have good success, most places I've search I could not find 2700K bulbs usually just 3000K, but as I said I have decent grows.

 

intenseneal

Well-Known Member

• May 1, 2013

• #14

Just flipped my T5 Ho grow to 12/12, last grow I did not have enough 3000K bulbs and I think it made my yield suffer. We will see how this grow goes with more 3000K bulbs and some Plant Pink bulbs.