LED Without LEDs -My First T5 Grow
- Thread starter pr0fesseur
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PetFlora
Well-Known Member
Contact them. They know which batches had problems. Batch ID is on each bulb. If yours is one of them, they will probably replace without you sending the bulb back
I use both Red Lifes and Florosuns. The Red Lifes are much 'redder'. more pink actually. I would 'think' there is more useful red in the RL, and since that spectrum is desirable during flower, I would want 2-3/8
hyroot
Well-Known Member
I had 3 redsuns, 2 coral waves and 3 flora suns, but one redsun burned out. So I decided to go with a flora sun. To.distribute tye 660nm evenly. I will email them too. If I can get free one. could b backbup for later.
PetFlora
Well-Known Member
Just heard from UVL. The 660 will retail @ $19.95.
hyroot, OR... see if you can exchange it for a 660. Tell Jeff if he exchanges for a 660 that you will post updates in my journal. I'm guessing that it is best in 1/6
I have been running 1/8 9with 3 UVL Redlifes/Suns. I would like to see whether 2/8 is better, but that's a test for another grow. In the mean time I have increased the number of floodings per hour and today increased ppms from ~ 1000-1200. I am pretty sure this strain will love the additional ppms. Also am now flooding every 15 minutes during lights on.
You should come take a look at how I am pushing the envelope in my journal
hyroot, OR... see if you can exchange it for a 660. Tell Jeff if he exchanges for a 660 that you will post updates in my journal. I'm guessing that it is best in 1/6
I have been running 1/8 9with 3 UVL Redlifes/Suns. I would like to see whether 2/8 is better, but that's a test for another grow. In the mean time I have increased the number of floodings per hour and today increased ppms from ~ 1000-1200. I am pretty sure this strain will love the additional ppms. Also am now flooding every 15 minutes during lights on.
You should come take a look at how I am pushing the envelope in my journal
https://www.rollitup.org/grow-journal...a-vs-21st.html
Smoking Pot isn't Addictive, but Growing It Sure as Hell Is
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kpmarine
Well-Known Member
Did they say through whom? Did you ever hear anything about that fiji spd by the way? I thought they were going to hook us up with a chart.
Fonzarelli
Active Member
I would like to get to the bottom of this fact or fiction wavelength debate. Has anyone done any real testing with 420nm vs. 460nm to see which is more beneficial or not necessary? I've heard mixed messages when it comes to this debate. It doesn't seem like there is a clear answer. Lately, I've heard that 420nm is the preferred wavelength.
I do know that the Hortilux Blue MH lamp has to be the best lamp out there for growing. I've only seen great results growing with the Horti Blue. I do know that the lamp contains much lower blue wavelengths down into the 400nm region so could this be the answer? I do know that this lamp has more 420nm than 460nm. It seems the 460nm may be of less importance than the violet wavelengths, 400-420nm. With this being said, I would like to see some side by side comparison between using 460nm and not using 460nm. Has anyone tried combining lamps only using the UVL super actinic for the blue light? Anyone tried mixing only UVL super actinic and UVL red suns yet? Results? I only want tried and true proof, not opinions. The web is full of opinions and not so much actual fact, so please do not quote some science webpage or opinion from someone else because all that matter is facts, tried and true experimentation with photos, etc.
thanks for your input
I do know that the Hortilux Blue MH lamp has to be the best lamp out there for growing. I've only seen great results growing with the Horti Blue. I do know that the lamp contains much lower blue wavelengths down into the 400nm region so could this be the answer? I do know that this lamp has more 420nm than 460nm. It seems the 460nm may be of less importance than the violet wavelengths, 400-420nm. With this being said, I would like to see some side by side comparison between using 460nm and not using 460nm. Has anyone tried combining lamps only using the UVL super actinic for the blue light? Anyone tried mixing only UVL super actinic and UVL red suns yet? Results? I only want tried and true proof, not opinions. The web is full of opinions and not so much actual fact, so please do not quote some science webpage or opinion from someone else because all that matter is facts, tried and true experimentation with photos, etc.
thanks for your input
kpmarine
Well-Known Member
To support their obvious crack habit? I doubt they'll sell well at that price. I'm personally not spending over $20 a bulb anymore.
Fonzarelli
Active Member
Does anyone have any idea what I'm even talking about? I'm surprised no one has jumped in to answer this question about 420 vs. 460. Seems like a hot debate in the other threads involved. Must be a mystery to everyone still.
polyarcturus
Well-Known Member
hmmmm lets try to use common sense today, they are both useful and they make bulbs that cover both ranges.... its up to you to decide the ratios. and then this is more a aquarium or LED specific question since most of the t5 growers are trying to focus on red spectrum.
kpmarine
Well-Known Member
There's a bunch of studies about the various wavelengths linked in this thread that can explain the different wavelength far better than I. Basically though, 420-450nm are the most photosynthetically active blue wavelengths. It's more about efficiency in theory, a plant can use other wavelengths, but it works better if you stick to what the plant has evolved to use best. Too much blue will stall out or slow your growth too. You wan tried and true proof though, you'll have to dig back through this thread and look for the white papers or try to find them in the depths of the internet.
polyarcturus
Well-Known Member
ideally you dont need to go to low on the spectrum unless your specialty lighting your flower room, anthing aroun 6500 will hit all the peaks of the blue spectrum and as kp pointed out a slight lowering on the spectrum isnt bad, thats why i roll with 10000k aquasuns and 6700k coralifes. then as fars as if i was flowering with t5 flora suns and coralwaves hit the blues and some extra reds.
hyroot
Well-Known Member
I talked to jeff at uvl. There is a 90 day manufacture warranty on all bulbs. Apparently the redsun should only last 8 months to a year. He said that who ever told me they would last 2 years was high. He said he would pro rate me on them but not swap for deep red 660. So it is what it is.
kpmarine
Well-Known Member
Is there no pic? Or is it just me?