How much light for seedlings

Kingvega · Mar 17, 2020

Hello a all, I have a 2 plant rdwc in a 4x4x8 tent with 800w actual draw from the wall led lights, my question is, how close should the lights be to the seedlings and is that too much light, thanks in advance

Snakeskins · Mar 17, 2020

Read up about your light. Mine only uses 250 actual watts and says it needs to be 26" away from seedlings but idk about 800

Kingvega · Mar 17, 2020

Snakeskins said:
Read up about your light. Mine only uses 250 actual watts and says it needs to be 26" away from seedlings but idk about 800

Its actually 2 400w lights

Snakeskins · Mar 17, 2020

Kingvega said:
Its actually 2 400w lights

yeah then you only need one of those. Hell you can get seedlings started and healthy with a cfl bulb.

SkunkyDunk · Mar 17, 2020

Every grow is different.
For about 10 years I have used a T5- 6 bulb 4 foot fixture. That's 324 watts.
I have it run 4 bulbs for new seedlings at 12" for a week. Then drop it down slowly to about 3" and pound them with light and nutes untill I transplant into there final home.
This gives me very compact , full growth.

This is how I do it.

Kingvega · Mar 17, 2020

SkunkyDunk said:
Every grow is different.
For about 10 years I have used a T5- 6 bulb 4 foot fixture. That's 324 watts.
I have it run 4 bulbs for new seedlings at 12" for a week. Then drop it down slowly to about 3" and pound them with light and nutes untill I transplant into there final home.
This gives me very compact , full growth.

This is how I do it.

What would you do with my set up

Snakeskins · Mar 17, 2020

SkunkyDunk said:
Every grow is different.
For about 10 years I have used a T5- 6 bulb 4 foot fixture. That's 324 watts.
I have it run 4 bulbs for new seedlings at 12" for a week. Then drop it down slowly to about 3" and pound them with light and nutes untill I transplant into there final home.
This gives me very compact , full growth.

This is how I do it.

You have now motivated me to put my cob led 8 in. closer to my seedling xd. well its bigger than a seedling anyway

Edinburgh · Mar 17, 2020

Have 600w led, during seedling stage i keep light 32inc from seedlings, once they get a bit of size i lower it to 2ft this seems to be my sweet spot.

Kingvega · Mar 17, 2020

Edinburgh said:
Have 600w led, during seedling stage i keep light 32inc from seedlings, once they get a bit of size i lower it to 2ft this seems to be my sweet spot.

Thank you

ru knuts · Mar 17, 2020

I use CFL's myself, seedlings and clones alike.

Kingvega · Mar 17, 2020

ru knuts said:
I use CFL's myself, seedlings and clones alike.View attachment 951345

I have led lights....any advice?

Formallyhap · Mar 17, 2020

This series will help

Formallyhap · Mar 17, 2020

long story short is, lower your lights until the plants show stress, then raise them till it stops.

It seems we don't understand as much about how reseliant the babies are.

I have 100 watts of led lights within 6 inches from the moment they hatch till the moment they get moved. As long as I start with a dome, they have been fine.

Learn about this more before you murder your plants though.

ru knuts · Mar 17, 2020

Kingvega said:
I have led lights....any advice?

I have led's also, but I save them for veg and flowering. They're overkill for seedlings IMO. The life expectancy for my led's are 50k hours, I'd rather burn up cfl's and keep my expensive light for the business end of growing, veg and flowering.
But I'm sure you have your reason, no objections on my end.

Snakeskins · Mar 17, 2020

ru knuts said:
I use CFL's myself, seedlings and clones alike.View attachment 951345

Very nice. CFLs are remarkable for vegging as well if you use enough of them.

ru knuts · Mar 17, 2020

Snakeskins said:
Very nice. CFLs are remarkable for vegging as well if you use enough of them.

In use T5HO's also from veg to harvest.

SkunkyDunk · Mar 17, 2020

Kingvega said:
What would you do with my set up

I've only had experience with very low quality blurple Mars lights and it wasn't good.
They were the 300w type, I think 105 actual watts.
They had to to be almost 2 feet away.

CBDfutute4 · Mar 21, 2020

As many people would bash cfl or dollar store led bulbs.

they work out fine for popping seeds, clones....basically anything until a plant reaches 5-7 inches in height

You will want to put a real light on it than n keep lowering it unless it’s something big n needs lots of distance so it doesn’t roast em

quirk · Mar 21, 2020

I use TaoTronic @ 18" for 7-10 days.

Bardfoadmraj · Mar 23, 2020

Auto seedlings seem to like the SHPS bulb I use a 600W exclusively for the seedlings now at fifty percent 18 on with a kessil LED at 24 while some photoperiod might get triggered by it they don't. I will sprout one a week under the kessil with the SHPS for heat. Once I have them lined up they will sit under that light for a week.

How much light for seedlings

How much light for seedlings

Kingvega

Snakeskins

Kingvega

Snakeskins

SkunkyDunk

Kingvega

Snakeskins

Edinburgh

Kingvega

ru knuts

Kingvega

Formallyhap

Formallyhap

ru knuts

Snakeskins

ru knuts

SkunkyDunk

CBDfutute4

quirk

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