How to Grow Tobacco

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 Post subject: My growlight design
PostPosted: Sun Jun 03, 2012 2:15 am 
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Joined: Wed May 02, 2012 2:20 am
Posts: 153
Location: Norway
I spendt a few minutes with electronic design this morning and i made this little 100x50 mm pcb

it's a 36 LED design and i can mix blue and red led's as long as i keep em in a 3 led array (D1 to D3 must be of the same color and so on )

im using 1206 surface mount resistors since they take up less space on the pcb but is large enough for easy soldering .

I'm using 33ohm for blue and 330 ohm for red led's with a 12 volt input .

This is not the finale design but it will be close to the picture ..

The cost for the pcb is 27 dollars for 10 (i usually get 12) 100 blue leds of ebay is about 4 dollars and red are about the same .. right now i have just regular led with a View Angle of About 25 degrees but i will get hold of straw hat types with an view angel og about 160-180 degrees.

the wave lenght of the blue leds i got is 460 to 470 and the red have a wave length of 425 to 430 ..

Not sure how it will work out but i will give it a try to see :D

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 Post subject: Re: My growlight design
PostPosted: Sun Jun 03, 2012 7:31 pm 
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Joined: Fri Dec 18, 2009 11:11 am
Posts: 375
Location: florida,
little high tech for me.

i used 4 foot flouro's with the proper bulbs in them

>Image
By chickenhawk434 at 2012-04-05

then moved them outside to harden the stems, in half a geenhouse with shaded plastic

...Image
By chickenhawk434 at 2012-05-19


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 2:12 am 
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Posts: 153
Location: Norway
CHICKEN it's a fairly easy thing to make and since my idea is to grow a few plants indoors from seed to harvest i guess i would nee somthing that will give the plants light with the right wave length ..

the light i have used up to now is just regular florecent light no special bulbs or anything .. anyway it is just a test and maybe i will endup using somthing else in the end


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 5:46 am 
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Joined: Fri Dec 18, 2009 11:11 am
Posts: 375
Location: florida,
if your going to do it inside, i'd think you would need a h.i.d.

at least a 400 watter,


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 6:24 am 
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Posts: 153
Location: Norway
CHICKEN wrote:
if your going to do it inside, i'd think you would need a h.i.d.

at least a 400 watter,

i might need more light but the goal is to see how far i can get with just regular light + my LED setup . I dont expect any big plants and a lot of tobacco but i like to experiment so atleast 3 of my plants will grow in my livingroom :

This is also my first year growing tobacco so it's a learning thing and maybe i will find out whats working and not so i can be an even more succsess ful growe next year anyway thanks for the tip CHICKHEN :D


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 7:30 am 
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Joined: Fri Dec 18, 2009 11:11 am
Posts: 375
Location: florida,
ive seen them grown indoors, beside a window,

and they turned out o.k.


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 7:33 am 
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Posts: 153
Location: Norway
CHICKEN wrote:
ive seen them grown indoors, beside a window,

and they turned out o.k.


If mine turne out ok i will try to grow a few plants this winter but i guess ther won't be to much natural light anyway it's fun experimenting to see what works and what will end up as a FAIL ... :D


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 Post subject: Re: My growlight design
PostPosted: Mon Jun 04, 2012 5:02 pm 
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Joined: Fri Dec 18, 2009 11:11 am
Posts: 375
Location: florida,
dont '' norway'' have some cold a@* winters ???

but wit warmth, and sunlight, and perhaps, a 2 foot flourorescent light tube mounted over it... i see no reason why it wouldnt thrive,


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 Post subject: Re: My growlight design
PostPosted: Tue Jun 12, 2012 4:31 pm 
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Joined: Mon May 14, 2012 11:16 pm
Posts: 34
Leds are not strong enough stig, not yet anyway, eventually the tech with me good and cost efficent but you need Too many in my experience. In my experience floro or even hardware cfl work a treat. What is important For veg growth you need minimum 2700 K and as many luman as you can get, to make anything flower you will require probably a minimum 5800K and some extra heat. Honestly in my experience don't agonise about colour rays etc. The KISS method is often the best, trust me I have had a go at everything lol.


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 Post subject: Re: My growlight design
PostPosted: Tue Jun 12, 2012 4:50 pm 
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Joined: Thu Jan 01, 2009 10:16 am
Posts: 798
Location: near Rising Sun,Maryland USA
1herbman wrote:
What is important For veg growth you need minimum 2700 K and as many luman as you can get, to make anything flower you will require probably a minimum 5800K


You have that backwards. For flowering you want 2700 K and for overall plant growth you want upwards of 6500 K


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 Post subject: Re: My growlight design
PostPosted: Tue Jun 12, 2012 6:08 pm 
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Joined: Mon May 14, 2012 11:16 pm
Posts: 34
lol yes
as I said KISS method. I should take my own advice lol.
in saying that I use 2700k for seedlings all all kinds, its what I currently use on my cacti and succulent seedlings and have had great response from 2700.
check out this table I just set up for my cacti will be able to fit 1000s of seeds under it an dth ecfl provides a cosy 27degrees cels which is maybe 80ish fah
Image

15 watt lights 150watt in total
2700K 1100lumens it will do the job for my cacti seedlings and most green leafy plants to a few weeks etc


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 Post subject: Re: My growlight design
PostPosted: Tue Jun 12, 2012 9:11 pm 
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Joined: Fri Dec 18, 2009 11:11 am
Posts: 375
Location: florida,
i like it,


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