Watching YouTube videos of other peoples led
reefs and a problem occurs to me.
All I found was Marineland and DIY systems with the Cree LEDs, but the biggest I found was only just over 60 watts.
, a 60 watt LED
panel is only equivalent to about 120 watts of MH
at best. I am seeing big tanks lit with only one or at best two of these fixtures, then complaints that they don't grow coral fast enough. I think too much is being expected from the LED
panels. Watts are watts, and while the LEDs can concentrate PAR using lenses, deeper into a tank, the overall lumen values are at best 2:1 in favor of LEDs. Again, this is my experience from moving from 900 watts of MH
, to at first, 360 watts of LED
. I have now upgraded to 560 watts of LED
and believe I now have as much light as I had with the old MH
and actinic system. That would be almost 10 of those 60 watt Cree panels for a 250 gallon. In the videos I see them trying to use up to three of them to light a big tank. That's only 180 watts, or about +300 watts of MH
. Not much.