The Planted Tank Forum - View Single Post - Convert Lux meter to PAR meter?
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post #166 of (permalink) Old 06-08-2013, 11:42 PM Thread Starter
Planted Tank Guru
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I have been asked if these PAR meters will work ok for reef tanks. To find out, I bought a 50-50 36 watt PC bulb, and tested a couple of them with that. One read 32 vs the Quantum meter reading of 33, and the other was only 2 units off at about the same reading. So, now I know they do work with 50-50 white/actinic light.

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