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Unread 08/31/2013, 10:17 AM   #1
mchammer
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Changing MH bulbs

I will be changing my MH bulbs from 250W 15000K to 250W 20000K radiums. I was wondering if going to a higher K bulb would lower par readings in my tank.

Does anyone know the answer to this question?


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Unread 08/31/2013, 10:25 AM   #2
sirreal63
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which 15K? You may actually get more PAR from the Radium, depending on the ballast you are using.


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Unread 08/31/2013, 10:38 AM   #3
mchammer
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The bulb is a 250W 15000k XM and my ballast is a Lumateck select a watt 250/400.


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Unread 08/31/2013, 11:27 AM   #4
sirreal63
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Won't be much difference in Par, the Radium is a strong 20K.


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