Quote:
Originally Posted by kien
WOW! Way to harness the power of the sun there! :-D Glad to hear the corals are responding favourably. Makes me want to try some radiums :-)
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400w 20K Radiums seem to be the gold standard for SPS coloration but it has lots of disadvantages compared to LED.
The heat produced from both the light and ballast is incredible. We are running a 1/3hp chiller but its not enough. More than twice the cost for power. The bulbs fire pretty white with electronic ballasts that are available on the market so they do still need actinic supplementation to make them look right. Evaporation has also increased.
I am patiently waiting for LED technology to catch up so that I can take these suckers down but something tells me that's not gonna happen for a very long time.