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Old 11-25-2010, 09:47 AM   #71 (permalink)
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Default Re: Color Temperature

I need some help. I want a LED ramp that is GOOD for plants and LOOKS good. And i want it in around 8000 K if its possible.

I want to use cree leds and I have some ideas.
Cree led xp-G cool white and warm white to get the red and the blue spectra. I also want to add some blue xp-E for some blue in the the 475 nm area and moonlight.

No to the problem, I have 36 led to play with and i want it to LOOK GOOD to. How many of every led do i need to get a good plant light and make it look good? cree.com have all the charts and colortemps. Please help me
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Old 08-01-2011, 07:55 AM   #72 (permalink)
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Default Re: Color Temperature

I've been using Marineland's "reef ready" LED s. For about 7 months. Very bright natural color with slight washout since there is little/no red output. Ive realized that some species do awesomely well, while others mediocre. Supposively, stem plants won't elongate without red...not true. Only kompacta has stopped vertical growth. Others like Wisteria,ludwigia, dw hairgrass, dw sagg, and baby tears with crazy growth.
I switched cuz I was tiring of the "BULBS". The ML doublebright is in the 6000 k range, but not bright enough for my deep tank...so I went with the 10,000k reef-ready. Personally, I will not use flo bulbs again.
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Old 01-18-2014, 11:02 AM   #73 (permalink)
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Default Re: Color Temperature

Quote:
Originally Posted by faltaren View Post
I need some help. I want a LED ramp that is GOOD for plants and LOOKS good. And i want it in around 8000 K if its possible.

I want to use cree leds and I have some ideas.
Cree led xp-G cool white and warm white to get the red and the blue spectra. I also want to add some blue xp-E for some blue in the the 475 nm area and moonlight.

No to the problem, I have 36 led to play with and i want it to LOOK GOOD to. How many of every led do i need to get a good plant light and make it look good? cree.com have all the charts and colortemps. Please help me
I have worked with there LED's extensively on Reefs. Planted fresh water tanks are almost simpler. Looking at 36 LED's I would start with a split between the cool whites (6,500K) and the Neutral Whites ( 4,500K). You would want a couple more of the cools to boast your blues and this gives a nice starting color for most people. so a base would be 16 neutral Whites and 20 Cool whites. But the color temp would be closer to 6,000K. To boast up the color temp to 8,000K I would replace probably 4 or 6 of the Whites with the True Blue 470nm LED's. Replace an equal number of the cool and the neutrals to keep a good balance.

Note you mentioned the warm whites. I would not use these I think they are way too much red and not enough blue. Also keep in mind that the K scale does noit ever reach blue but peaks out in the cyan region of the spectrum, 6,000K and 10,000 K are very white in most peoples eye.
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Old 10-02-2015, 02:27 PM   #74 (permalink)
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Default Re: Color Temperature

Anyone know where I can order 150W 6500K mogul base metal halite replacement bulbs. I was able to get them last year but now I can find a place with them.
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Old 10-02-2015, 02:32 PM   #75 (permalink)
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Default Re: Color Temperature

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Originally Posted by ryouexp1 View Post
Anyone know where I can order 150W 6500K mogul base metal halite replacement bulbs. I was able to get them last year but now I can find a place with them.
Don't seem to have exactly that, but has a nice search filter:
https://www.1000bulbs.com/search/?q=mogul+halide
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Old 05-06-2020, 03:46 PM   #76 (permalink)
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Default Re: Color Temperature

I don't know if anyone will see this since the last post here was from 2015 but I'll give it a try.

Does anyone know where I can find T8 24" bulbs in 8,000K? I use to use a 6,500 and 8,000 for my tank and I never had any algae problems and I liked the looks of the colours in the tank. The 8,000 bulbs I had came with the fixture and since then, I cannot find them anywhere for sale.

I'm now using a 6,500 and a 10,000. I don't really care much for it and since I started using the 10, I have a bit of algae now even though I haven't changed anything with how I care for the tank.
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