My second grow. What distance to have Spider Farmer LED lights from the grow? How far apart can I do the plants?

[Gemologist John]

On my first grow I had them about 18" from the tops of the plants and adjusted them as they grew. I have 4 2000 units and 1 4000 unit for 12 plants. My first grow I made a lot of mistakes that I know I will not make all of them again but I want to get the best care for my plants as I can give them. Thanks!

 

[anexgrower]

If you have an iPhone try Korona app and then you can dial in the Ppfd at the canopy, I was giving double the light I expected and would have stunted growth of seedlings

 

[Gemologist John]

Great thanks! I’ll get the app now

 

[Wastei]

Don't follow numbers. Follow the plant, it will tell you what to do.

I would start at double the recommended distance and lower til you see beginning signs of light stress. Good luck! Cheers!

 

[ҖҗlegilizeitҗҖ]

On my first grow I had them about 18" from the tops of the plants and adjusted them as they grew. I have 4 2000 units and 1 4000 unit for 12 plants. My first grow I made a lot of mistakes that I know I will not make all of them again but I want to get the best care for my plants as I can give them. Thanks!

Here is some good, real world PPFD charts for the SF4000

 

[FastFreddi]

Don't follow numbers. Follow the plant, it will tell you what to do.

I would start at double the recommended distance and lower til you see beginning signs of light stress. Good luck! Cheers!

Yessir agreed...zero dimming here..I start all plants under full power of the appropriate light for stage of growth.
Adjust height accordingly.
FF

 

[FastFreddi]

This was my first grow. As I said I made mistakes but I guess I did ok. I’m hoping I’ll do much better on this one.
I have lots of general questions about feeding and watering. I know I’d like to set up a watering system.

Most excellent Ma'am.
FF

 

[Gemologist John]

Don't follow numbers. Follow the plant, it will tell you what to do.

I would start at double the recommended distance and lower til you see beginning signs of light stress. Good luck! Cheers!

That is what I thought I would try. Seems like the easiest method

 

[ҖҗlegilizeitҗҖ]

This was my first grow. As I said I made mistakes but I guess I did ok. I’m hoping I’ll do much better on this one.
I have lots of general questions about feeding and watering. I know I’d like to set up a watering system.

That you smoking that giant nug?? Hahah good job

 

[Gemologist John]

Most excellent Ma'am.
FF

That's my wife. She couldn't wait to light up. As I was growing she kept going into the room and just stare at the plants. I guess I am guilty of that as well lol

That you smoking that giant nug?? Hahah good job

no it’s my wife