that bear smokey
Well-Known Member
I am thinking of trying T5s for the 1st time in a 32x32x60 grow tent. what type of ventilation would I need? and what are your thoughts on using T5s? any comments would be great, any pictures would be great too.
thoughts on growing with T5s
- Thread starter that bear smokey
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Someday Please
Member
Put a 250 halide and a 400 hps for flower it will make it more worth your while in quality and quantity. Vent with a 4 inch fan and try to find an air cooled hood. But it is pretty limited in 4 inch. So don't skimp on these essentials. If its cooled you can keep it closer which gives you more penetration. No on the T5's except clones and seedlings.
Someday Please
Member
With a hps you woulda been looking like that at the end of the 5th week and that undergrowth woulda be doubled
reggaerican
Well-Known Member
T5's kick ass if used propperly. If thats what you wanna use then dont be pushed into the hid's.. Also there are products out there that will fool your plants into thinking that T5 is a HID.. Give it a go you wont be dissapointed.
Cheers~ Reggae
Cheers~ Reggae
hyroot
Well-Known Member
Listen to pet, we are both part of Team PAR T5. Flouros have definitely come a long way. They kick.hid's ass. Its all about proper spectrum. Giving the plants the proper light that chlorophyll absorbs. Not ass backwards hid. Lumens means nothing. By definition its visible light seen by the human eye. Plants do not absorb the spectrum we see. You just need the right bulbs
This is a chlorophyll spectrum diagram. Showing the spectrum that plants absorb.
This is a chlorophyll spectrum diagram. Showing the spectrum that plants absorb.
that bear smokey
Well-Known Member
ok so could I grow 2 decent plants 12/12 with T5s? what size T5s? I was thinking of getting a 2ftx4bulb for my small grow tent. its 32x32x60. what that do for me?
past times
Well-Known Member
i have a little smaller space then that for my veg/clone room. it is 30x20x45ish. I have a 2 bulb HTG hood that has 10k lumens and then i have an extra 2 ft single bulb t5 and a couple regular light hook ups for a litttle extra if needed. I get really great veg growth outta these. But they never get more than a foot tall in that room for me. exhaust is supereasy. Just one large computer fan intaking across the canopy. no problem with heat.
the downside to t5's and cfls is light depth penetration. For them to be most effective you need them to be as close as possible without touching the bulb. That is why High Output bulbs (MH, HPS) have good results. they simply have the power to penetrate into the canopy and provide more energy fro the plant
the downside to t5's and cfls is light depth penetration. For them to be most effective you need them to be as close as possible without touching the bulb. That is why High Output bulbs (MH, HPS) have good results. they simply have the power to penetrate into the canopy and provide more energy fro the plant
that bear smokey
Well-Known Member
so what would I need to grow 2 good plants from 12/12? A 2ft x 4bulb T5 or a 150 watt with both hps/mh?
hyroot
Well-Known Member
Of course hid penetrates more. Its a single point of light. T5' are not. Inverse square law. But you can have t5 closer. You cant with hid. but t5 with right balance of 360nm ,380nm , 420 nm, 450nm, 630nm , 660nm, 690nm, 760nm, and a little green too. In each of my 8 bulbs I have 4 zoo med flora suns( 360nm,450nm. 630nm, 660nm) , 2 uvl redsuns( 630nm, 690nm), and 2 wave point coral waves (420nm, 760nm). I produce bigger buds and frostier, and more dense than a 1000 watt hortilux. I did side by side hid vs t5 for over a year.
AGAIN ITS ALL ABOUT SPECTRUM. This has been proven time and time again. By me, several others on rui, and several universities.
Look up PAR Photosynthetically available / active radiation. You want par not lumens.
Plants turn light into food. So if u give them the right nutes, why not give them the right light.
AGAIN ITS ALL ABOUT SPECTRUM. This has been proven time and time again. By me, several others on rui, and several universities.
Look up PAR Photosynthetically available / active radiation. You want par not lumens.
Plants turn light into food. So if u give them the right nutes, why not give them the right light.
hyroot
Well-Known Member
If you go for a 2 ft. Get an 8 bulb. It takes up a 2'x2' .
For veg 2 flora suns, 2 actinics, 2 6500k, 2 ati aquablue special
For flower 4 flora suns, 2 uvl redsuns. 2 wave point coral waves
that bear smokey
Well-Known Member
ok thank you
PetFlora
Well-Known Member
Let's talk 'penetration' since my girl friend doesn't want to[B said:
... Pretty much no matter what your light source is, if your canopy is thick you're not going to get much penetration. However, if the energy from the top is sufficient (~ 50w/cf= cubic foot) the lower buds will get what they need, BUT, side lighting can be extremely helpful especially when the canopy is thick. It's almost impossible to side light with HIDs due to distance needed not to burn the plants. Only one ft tall? Could be the pheno for that strain. I am growing 3 plants from my first cross. All are under the same T5, 2 are begin fed via high pressure aero, the other is in my DIY 21st Century Flood & Drain. All have different expressions from height to girth to side branches. Between the 2 in hpa one is ~ 16" the other 3ft+.
It's not the light, more likely the amount of light. 2 hids and only 10K lumens? Single 4ft T5s produce that. The bud area of my large plant 'Big Girl F 1" is ~ 2 X 2 X 3. She could be taller but the weight of the buds has caused the branches to spread horizontally. That's fine with me as I get more light penetration and more+ bigger buds per cola.
Place that 2ft T5 as a side light. One of the guys on riu has a rockin grow using 8 X 2 ft T5
New pics to my journal today