Lighting 6400k Led light

I had really good luck on my first grow...1X 135W UFO (90W actual) about $100 at the time, they are now more like $70. I grew 2.8 oz. worth of Dark Devil with that one little UFO...and almost no heat, you can put that light damn near right on top of the plant.
 
Using LED for seedlings, up to about 3 sets of leaves, youd be fine with about 15w / sq foot, for mature plants suggested is about 30w/ft and maybe more during flowering. So with a 30 watt light, you could build a box that is about 16 x 16 inches and put as many seedlings as you can fit in there. Seriously tho, you could use a standard daylight 9w bulb for a seedling and it would probably be fine for a couple weeks, if you keep it relatively close to the plant. Its not as much about total watts, as it is about watts/area, which creates the necessary intensity to get good growth.
 
I had really good luck on my first grow...1X 135W UFO (90W actual) about $100 at the time, they are now more like $70. I grew 2.8 oz. worth of Dark Devil with that one little UFO...and almost no heat, you can put that light damn near right on top of the plant.
Very good light.
 
Using LED for seedlings, up to about 3 sets of leaves, youd be fine with about 15w / sq foot, for mature plants suggested is about 30w/ft and maybe more during flowering. So with a 30 watt light, you could build a box that is about 16 x 16 inches and put as many seedlings as you can fit in there. Seriously tho, you could use a standard daylight 9w bulb for a seedling and it would probably be fine for a couple weeks, if you keep it relatively close to the plant. Its not as much about total watts, as it is about watts/area, which creates the necessary intensity to get good growth.
I might have a look at some cfls and see what I can come up with, I have to plan it all out before I build it.
 
Using LED for seedlings, up to about 3 sets of leaves, youd be fine with about 15w / sq foot, for mature plants suggested is about 30w/ft and maybe more during flowering. So with a 30 watt light, you could build a box that is about 16 x 16 inches and put as many seedlings as you can fit in there. Seriously tho, you could use a standard daylight 9w bulb for a seedling and it would probably be fine for a couple weeks, if you keep it relatively close to the plant. Its not as much about total watts, as it is about watts/area, which creates the necessary intensity to get good growth.
I totally agree with the above post.
I currently have a Blue automazar running under 27w led
The first 10 ish days under 27w is perfectly fine then im adding one more 27w panel up til day 60 then finishing under my 100w hps.
anyways after the 3 set of leaves your plant need more light
Infact its actually possible to pull a decent yeild and tasty weed from low wattage led light.
:)
 
I might have a look at some cfls and see what I can come up with, I have to plan it all out before I build it.
Walmart has some great value LED bulbs that have the LEDs on a flat plate, surrounded by a plastic cover to make them look like a regular bulb and diffuse the light. You could get one of the 60 watt equivalent daylight spectrum 8.5 watt bulbs and cut the plastic away using a dremel and cutting wheel and you would end up with most of the light going straight out the top of the bulb. This could work very well for a single seedling. One issue some people have with seedlings, which causes them to have slow growth is temps too low. With adequate light, you will get much better growth with temps near 80 degrees than you will if temps are closer to 70 degrees. CFL's will warm an area up more than LEDS will, as they are less efficient and produce more heat, which, if it is needed to heat an enclosure, isnt necessarily wasted...
 
Walmart has some great value LED bulbs that have the LEDs on a flat plate, surrounded by a plastic cover to make them look like a regular bulb and diffuse the light. You could get one of the 60 watt equivalent daylight spectrum 8.5 watt bulbs and cut the plastic away using a dremel and cutting wheel and you would end up with most of the light going straight out the top of the bulb. This could work very well for a single seedling. One issue some people have with seedlings, which causes them to have slow growth is temps too low. With adequate light, you will get much better growth with temps near 80 degrees than you will if temps are closer to 70 degrees. CFL's will warm an area up more than LEDS will, as they are less efficient and produce more heat, which, if it is needed to heat an enclosure, isnt necessarily wasted...
Ill have to go check walmart out it seems then :) thanks for the heads up treeman. Leds are the future! Well until they vome out with new light spectrum technology lol
 
You can seed under almost anything.

In the past I have seeded with great effect under standard E27 4 Watt cold white LED spots, placing one spot individually over each seedling, no further than 1-2 inches above the top leaves.
 
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