BeanAnimal
Premium Member
PJF with all due respect... you keep bringing up the same straw arguments. Of course Dana's article mentions UV, it is his number one favorite topic (along with the need to reduce lighting levels in captive reefs).
I am responding to the recent posts by slow-leak in order to clarify the assumptions drawn in the post.
I am responding to the fact that the 250W XM bulb with UV shield is a very poor example of 250W MH lighting. Popular or not, it has crappy PAR that comes in below that of some lower wattage MH and most other 250W bulbs.
Fatal Flaw? The 175W XM 20K comes in with a par of 51, That would make the lamp with the FATAL FLOW more efficient than the SOLARIS!
150W and 175W 10K offerings come in at the 70-90 PPFD mark. Even with their "fatal flaw" they blow the SOLARIS away.
So the "fatal flaw" of the SOLARIS unit is that it is not yet competative with better MH lighting in terms of efficiency (watts per PAR/PUR) if a good MH bulb is chosen.
Nothing is perfect, anything can have a "fatal flaw" sir.
I would add, that you keep saying UV is harmful to coral health, yet the MH bulbs simply do not put out that much UV. You make it sound like somehow we are all killing our coral.
You keep saying the same thing in an attempt to show these units in a good light and MH in a bad light (no pun) and infer that I do not understand. You are not "refuting" a point being made, you are sidetracking the point with fluff.
I am talking about (and grounding) the inflated claims and fallacies that keep circulating about these lighting systems. You are ignoring the conversation and keep saying "yeah but the fatal flaw is....". There is no "fatal flaw" sir. The units operate differently and until the LED units surpass ALL MH units/technology across the board in efficiency and growth, then your "fatal flaw" is nothing more than your own pet peeve based on narrow thinking or interpretation.
Yes, a UV free source would be nice for reef lighting. The SOLARIS is a step in the right direction. As is easily illustrated, it is not the most efficient option and likely will not be for several years. If you have a 250W SE XM 20K with a UV shield and are slightly overlit and have a heat problem, then the SOLARIS unit could be considered as viable energy saver if you keep it in place for 10 years! Your not going to save $113 a month by removing (2) 250W MH bulbs...
I am responding to the recent posts by slow-leak in order to clarify the assumptions drawn in the post.
I am responding to the fact that the 250W XM bulb with UV shield is a very poor example of 250W MH lighting. Popular or not, it has crappy PAR that comes in below that of some lower wattage MH and most other 250W bulbs.
Fatal Flaw? The 175W XM 20K comes in with a par of 51, That would make the lamp with the FATAL FLOW more efficient than the SOLARIS!
150W and 175W 10K offerings come in at the 70-90 PPFD mark. Even with their "fatal flaw" they blow the SOLARIS away.
So the "fatal flaw" of the SOLARIS unit is that it is not yet competative with better MH lighting in terms of efficiency (watts per PAR/PUR) if a good MH bulb is chosen.
Nothing is perfect, anything can have a "fatal flaw" sir.
I would add, that you keep saying UV is harmful to coral health, yet the MH bulbs simply do not put out that much UV. You make it sound like somehow we are all killing our coral.
You keep saying the same thing in an attempt to show these units in a good light and MH in a bad light (no pun) and infer that I do not understand. You are not "refuting" a point being made, you are sidetracking the point with fluff.
I am talking about (and grounding) the inflated claims and fallacies that keep circulating about these lighting systems. You are ignoring the conversation and keep saying "yeah but the fatal flaw is....". There is no "fatal flaw" sir. The units operate differently and until the LED units surpass ALL MH units/technology across the board in efficiency and growth, then your "fatal flaw" is nothing more than your own pet peeve based on narrow thinking or interpretation.
Yes, a UV free source would be nice for reef lighting. The SOLARIS is a step in the right direction. As is easily illustrated, it is not the most efficient option and likely will not be for several years. If you have a 250W SE XM 20K with a UV shield and are slightly overlit and have a heat problem, then the SOLARIS unit could be considered as viable energy saver if you keep it in place for 10 years! Your not going to save $113 a month by removing (2) 250W MH bulbs...
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