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post #5 of (permalink) Old 01-21-2013, 04:36 AM
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Join Date: Dec 2005
Location: Sacramento, CA
Posts: 19,673
Yes, considering your investment in a DIY light, you don't want to end up with too little light and no easy way to increase it. So, you design for more light than you want, and use a dimmable driver so you can reduce the intensity, if necessary. Today the cheaper option for many tank sizes would be manufactured LED lights, like the Finnex ones.

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