LED light too strong..

[S-V-K]

The HGL's I am using have that russian tomato profile, 75 15 10 and it really kicks on the indica. My sativa wants more blue, a lot more blue.

I use supplements to push the blue up to 20%, green is also supplemented to 20%, putting the red down to 60%. This did not slow down the indica in the least and the sativa quit stretching so much and got sticky sooner.
For what it is worth I also add green supplement to my CMH veg lights. Green helps when the intensity is around 100 watts/foot2, less total light and the green does not matter anymore. The explanation is tedious.

I recently acquired a Papaya, this is going to replace my sativa, giving me two fairly pure indica strains, Northern Lights is the other. Lighting will instantly become much simpler, and the Northern Lights responds to UVB more readily, hopefully this is an indica trait.

I run 50 watts/foot2 of LED and keep the plants back 16" to 24" with 28 watt 60 degree beams. I also have 60 watts/foot2 of fluorescent surround, kept back 8" to 16".

72 fluorescent tubes, 80 LED modules, and 1 HID. All this to keep the highest possible energy on the plant without any one spot getting more than any other, no bleaching and 100 watts per square foot growth rate. Diffuse light grows best.

Thanks a million for a valuable information. I have grown only Sativa strains so far. I'm going to rework the light completely and would like to add dimmer so I can adjust brightness of blue and green. Hopefully it will have a desired effect on indicas

I see your distance from plants is 16-24" unfortunately I can't do it in my test cabinet :-(
I have removed all lenses so lets see if that will be better once I will change ratios.
Maybe I should use RGB leds so both of the worlds are happy.

 

[rives]

Many thanks for help.
I have ordered new LEDs (this time not Chinese) so I can rebuild the light.
Might I ask you a question about your Lumigrow light?
I really like an idea of dimming - would this dimmer be suitable ?
http://www.ebay.co.uk/itm/Controlle...ighting_SM&hash=item4aaa23cb2b#ht_2108wt_1185

Many thanks and happy growing

There isn't enough detail in that ad for me to tell if that dimmer would be suitable or not. Perhaps someone else is familiar with it? I am using dimming Meanwell drivers in the new fixture that I am putting together - they are only a few dollars more than the non-dimming versions, and can be controlled with a potentiometer, 0-10vdc signal, or a PWM signal.

 

[S-V-K]

There isn't enough detail in that ad for me to tell if that dimmer would be suitable or not. Perhaps someone else is familiar with it? I am using dimming Meanwell drivers in the new fixture that I am putting together - they are only a few dollars more than the non-dimming versions, and can be controlled with a potentiometer, 0-10vdc signal, or a PWM signal.

Unfortunately my driver isn't dimmable :-(
Did you build your controller or bought somewhere ?

Thank you very much

 

[rives]

I am just using a 10k pot in the circuit provided on the Meanwells.

 

[S-V-K]

So I have split my light in two sections and here is the plan:
VEG side:
660-19 leds ---Warm white- 2leds---Green(520nm)- 2leds
620-19 leds----Cool white- 4 leds--440- 3leds---460- 3leds

Flowering part:
660-20 leds ---Warm white- 4 leds---Green(520nm)- 2leds
620-20 leds----Cool white- 0 leds--440- 2leds---460- 2leds
IR- 2 leds

What do you think -is it going to work ???

Many thanks