WHAT spectrum for a new led light??

abecsta

Active Member
So im still in my first grow with my first LED but ive already decided to go bigger... can you blame me .
My current LED is 120w using 1w LEDs with a spectrum of R,B,W,UV in a 6/1/1/1 and a 1:1 ratio of 660s and 630s in the reds.
My thoughts on a up grade are to go 3w or even 5w but still a little unsure of the 5s For the spectrum im thinking maybe just R,B,W and using my 120w as well. and for the over all wattage im thinking 300 - 500w with a preference of lower wattage.

hope that was clear any advice on spectrum or if your using an led unit and could tell me about its spectrum and wattage and how well its working would be Awesome


also just for your enjoyment ill upload some pics of how its going
these are from when she was young ill get a new one up soon now that shes on day 25 also shes a white widow clone DSCF0299.jpgDSCF0300.JPG
 

Encomium

Active Member
I think you should take a look at this thread to make a good decision on your next LED.

So far the most vocal contenders seem to be Blackstar, Isis/Magnum, Spectra, and HIDhut (Spectrum Supernova) line of LED lights. I think there are a couple of more of reputable LEDs out there as well that I missed in the thread. Of all the ones mentioned there are detailed journals covering most of them with ending results per watt used.

What kind of LED is in the picture there?
 

abecsta

Active Member
Encomium
I got it made so unbranded... or abecsta brand

Ill be getting my next one made 2 if anyone can give me a hand in helping me pick the spectrum that would be extremely helpful

MLway im tempted to go that way
 

abecsta

Active Member
so i think these are the colors i want if im missing anything or doing something wrong please tell me and also any advice on ratio would be sweet
red
630 (A)
660 (B)
730

blue
420-470 (B)
400-430 (A)

white
5000K ? not sure on what ratio would be the best as i would like to use same light from start to finish

led wattage still unsure if i should go 3w or 5w (maybe just flip a coin over it :) )
with brand of led im still looking into it either cree or bridgelux as i know they are reliable anyone know anything about epistar i still gota google them
 

abecsta

Active Member
Wavelengths are tricky to answer because it really depends on the type of plants, but you are safe to use about 70% 660nm(deep red) and 15% 430nm(deep blue) and 15% 460nm (royal blue). The best LED grow lights I have used emit over 11 different wavelengths of color but most of it is 660, 430 and 460.
http://answers.yahoo.com/question/index?qid=20110225000334AAUcFWa

read this any one disagree

so some of this stuff is going over my head makes me think i should be studying horticulture not fish any how could some one make any sense of this
http://www.ledgrowlights.info/LED-light-wavelengths.php
Beta-carotene 450nm 480-485nm dual peak
chlorophyll a 430nm 662nm dual peak
chlorophyll b 453nm 642nm dual peak
phycoerythrin 590nm single peak
phycocyanin 625nm single peak
 

abecsta

Active Member
If you want help on the Kelvin here's a graph that should help,
And did you personally make your board or you know a guy?
no i didn't personally make it lol i have trouble enough wiring up a pid temp controller with out shocking myself at least once.
all i did was choose a spectrum that i liked the sound of
 

abecsta

Active Member
OK so...
Ive been told i can get leds in 430-440,450-460,625-630, 640-660,730, 590 and white 6400 and 2700k
so any one got an idea on what would be the best ratio?
 

abecsta

Active Member
that's a pretty basic unit
but thanks its given me a starting point in ratio

like if i simplify a little
i can have
red 660 630 1:1
far red 730
blue 430 - 450
and white 6400k and 2700k 1:1

and have it in a 7:1:1:1 ratio
what do yous think of a LED like this and would you add anything
 

abecsta

Active Member
ok i made a change
red 660, 630 in 1:1 ratio
far red 730
blue 430-450
blue 470
white 6400k , 2700k in 1:1
and be R.7:FR.1:B.1:B.1:W.1
 
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