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Old 02-07-2010, 07:14 PM
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Quote:
Originally Posted by naesco View Post
You may be right on the plasma.
The the point I was trying to make was that with LED is available now and Plasma technology is around the corner it would not be a good move to invest in expensive MH lighting at this time. It would be much better to invest in a cheap T-5 option.

MHs are expensive, have a huge demand for electricity, create tremendous heat which has to be dealt with chillers or noisy supplementary fan additions, require frequent bulb replacement, cannot be programmed to dim and require supplemental lighting.
For the average size tank MH can be cheaper than T5s or about the same, they don't need supplemental if you use the right bulb and they don't require a chiller if done properly.
All I'm currently running is 500W of halide and the color is good. I only need a small fan on hot days (no ac in house) and replace the bulbs once a year which runs for about $140. If I had all T5 I would spend about the same or more on bulbs, still require a fan on hot days but I'd save a little in power but not enough to make much difference. T5 bulbs also burn out prematurely and take up more space which is why I'm now using halides.

LEDS can't touch the intensity and penetration of halides, for clams and SPS halides win. For a softy and LPS tank LEDs may work well but you'll never get your money back in energy savings and I'd still like to know how long the bulbs actually last. LEDs do burn for 10 years but halides will also burn for 5+ years but you still have to replace them every year. My guess is that LEDs will require replacing somewhere around 3-4 years and the cost will be ridiculous, likely cheaper and easier to buy a new fixture.

And who really cares about dimming?
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