What color spectrum do seedlings like does it even matter?

I've got a lil seedling jus sprouted through the soil n I'm woundering if the light I'm using is gonna work on it. It's a 2700k cfl is that the rite spectrum or do they like the 5000k and up spectrums please give me an answer this is usually where I screw up with my plants.

i use a 6400k 24w T5 sunblaster with reflector for the first 10 days from planting my seeds .

J

i just leave seedlings in the window for the first day or two untill they have their first set lil jagged leafs then under the cfl

Well that would be part of the vegging stage, which is the blue spc....but honestly even if u use a red spc. I don't think ur gonna see much diff in sprouts..

I use a 50/50 mix in my box because of they way I have my lights mounted. After all we are trying to fool em with our lights so you would want the spectrum to be mixed, just like the sun. From what I have read about this, it seems that a 70/30(6500k/2700k) is what is rite for these girls in veg. When I move em to flower I switch it up the other way 70/30(2700k/6500k).

here is a link that explains what par is (spectrum) is and how plants use it.https://www.rollitup.org/blogs/blog45-truely-understanding-lights-par-watts.html/https://www.rollitup.org/blogs/blog46-truely-understanding-lights-par-watts.html

Hope it helps.

Peace

Big

For vegetation use 6500k lights, this is blue'er light, and the plants like that in veg. When you go to flowering use 2700k, this is in the more red spectrum.

Wal-Mart has a pack of 2x 26w 6500k light bulbs for like $6. Use those for veg.

Let your plant pop through the soil before you start messing with the lights.

bigman4270 said:

I use a 50/50 mix in my box because of they way I have my lights mounted. After all we are trying to fool em with our lights so you would want the spectrum to be mixed, just like the sun. From what I have read about this, it seems that a 70/30(6500k/2700k) is what is rite for these girls in veg. When I move em to flower I switch it up the other way 70/30(2700k/6500k).

here is a link that explains what par is (spectrum) is and how plants use it.https://www.rollitup.org/blogs/blog45-truely-understanding-lights-par-watts.html/https://www.rollitup.org/blogs/blog46-truely-understanding-lights-par-watts.html

Hope it helps.

Peace

Big

Click to expand...

The sun doesn't have mixed spectrum light dude, it's all the same temperature and produces the same color. It's just the angle of the earth to the sun, and how the earths atmosphere filters or reflects certain spectrum of light. Thats why it's 'normal' color during noon, and when the sun is setting the sunset is a red/orange color.

Thanks for the info guys it really helps