The Planted Tank Forum - View Single Post - Cheap lighting - ODNO
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post #187 of (permalink) Old 09-17-2004, 02:47 PM Thread Starter
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4x ODNO generally provides about 2x the regular output. So you should be seeing the equivalent of about 75watts with those two 2' bulbs in series (4xODNO). You lose a lot of energy to heat.

- Sam P -
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