I bring this up due to my own experience. I have been running evergrow LEDs over my tank for 1.5 years. I wasnt noticing much growth.
I started out with a 1:1 ratio of CW 12000k to RB. That was way too white. So I went to a 3:1 ratio RB to CW. But still not much growth.
When I added the UV and red 660nm the corals responded with growth.
I agree not hard science but many newer LED fixtures are coming out now with more UV and red then the older systems. If they are doing their own research they are coming to the same conclusions.
When I buy my s300 it will look like this.
6 UV 420nm
8 RB 450 nm
2 blue 465nm
4 white NW
2 turquoise 495nm
2 red 669nm
Zedar,
Thanks for posting the second link. Good reading! I have a few questions for you and/or others that are following this:
1. Are you basing your configuration off of the AA article posted above? If so, why are you using fewer UV than they did? Does LedZeal actually offer the LED's you have specified?
2. Did you purposely specify all 420nm LED's instead of the mixed range listed in the article?
3. The article said "Unfortunately, high quality and efficient violet LEDs are still very expensive and in fact, if installed in sufficient quantity, they account for most part of the LED assembly's overall cost."
This being the case, is there a way we can determine the quality of the UV LED's offered by LEDZeal's?
4. It appears they were using a mix of XML and XT-E which I find to be very interesting. I didn't know you could do that, and furthermore, I hear of almost no one using XML's.