DIY Led Spectrum Layout & Critique

[Mike_Diako]

Please critique my DIY spectrum and layout. I will be running it off of three indipendantly controlled channels dimmed via PWM so I can control the color mixing. All LED's are 3w each. Most likely being underdriven. I will be making three of these panels in total; two for a Nuvo 20, and one for a Nuvo 10. Both are fairly shallow tanks and even though it may be overkill, I'd like to be able to have the flexibility to grow whatever I'd like down the road. I also have pink, full spectrum, and 4500k LED's on hand to work with. I may replace the green with mint or turquoise but I am undecided. Hence me asking for everyones input.

Thank you in advance!

 

[theatrus]

I’d lose the green and red entirely. Replace with RB or your choice (Cyan, Mint)

 

[Mike_Diako]

I’d lose the green and red entirely. Replace with RB or your choice (Cyan, Mint)

May I ask why you'd lose the red and green? To my understanding, photosynthesis relies on beyond the normal white and blue, though I understand that white light contains some of those additional colors in the spectrum of it.

 

[sbash]

May I ask why you'd lose the red and green? To my understanding, photosynthesis relies on beyond the normal white and blue, though I understand that white light contains some of those additional colors in the spectrum of it.

The amount of reds and greens needed are very low compared to the rest of the lights. When I do fixtures this small, I rely on the whites providing the reds and greens. I wouldn't add red and green diodes until the fixture is 20 to 30 LEDs.

I also switched from 10000k to 15000k a couple years ago, although I can't find my documentation right now. That might give you a nicer white. I have also discovered 450nm blues are great for viewing, so I make my bares 450nm heavy and add in a few whites and a couple UVs to balance it out.

 

[Mike_Diako]

Thanks for your insight. What do you think of the 20-25,000k LEDs?

 

[theatrus]

The amount of reds and greens needed are very low compared to the rest of the lights. When I do fixtures this small, I rely on the whites providing the reds and greens. I wouldn't add red and green diodes until the fixture is 20 to 30 LEDs.

I also switched from 10000k to 15000k a couple years ago, although I can't find my documentation right now. That might give you a nicer white. I have also discovered 450nm blues are great for viewing, so I make my bares 450nm heavy and add in a few whites and a couple UVs to balance it out.

I haven’t seen an LED marketed under those color temperatures (10k, 15k), since they’re way off normal use spectrums - can you provide a link?

 

[Mike_Diako]

This listing has 10,000k, 20,000k, 30,000k. I’ve boughg LED’s from this seller before and they’ve been good quality.

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/323654696630