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Old 05-17-2011, 07:38 PM   #1
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Led or T5's

Hi Guys

I have a jewel vision 180

With 2 x 35 w blue and White marine

Just wondering what's the better choice

LED or T5

Thanks
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Old 05-17-2011, 08:50 PM   #2
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T5 are cheaper and penetrate deeper from what i've seen LEDs lose alot of PAR as it penetrates to 12" you can have 600 at the surface and drop to under 200 at 12", but LEDs give a shimmer effect and energy efficiant. as well the LEDs last about 15 years while T5s shoudl be chanegd out once a year
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Old 05-17-2011, 09:06 PM   #3
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AI SOL LEDS have 700 PAR at 18".
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Old 05-17-2011, 09:52 PM   #4
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but what is it at the surface
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Old 05-17-2011, 09:57 PM   #5
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1650
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Old 05-17-2011, 10:17 PM   #6
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see my point was there is a huge drop in par rating from LEDs, not sayign they are no good by any means.

whats the total wattage of this fixture with how many LEDs
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Old 05-17-2011, 10:21 PM   #7
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I just ordered the AI sol LEDs! I have a current nova pro on my smaller tank, it is a lot of light for a good price, didn't raise my temps in the tank very much compared to MH.

My main reason for switching to the LEDs was less maintenance and room to grow/shrink without having to invest in another fixture and trying to sell existing fixtures that won't work on a different tank size.
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Old 05-17-2011, 11:10 PM   #8
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I love my LEDs, have had them a year and have found the only downside is underestimating how bright they really are. Wouldn't the PAR value be a function of the reflector as much as the source? My reef was lit with metal halides for years.
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Old 05-18-2011, 03:53 AM   #9
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Hi all

Thanks for the replys

I was under the impression that in had to change my T5 bulbs every 4 Months which I though was going to get a bit expensive but if it's just once a year that's not too bad

This is prob a stupid question but is PAR

Thanks guys
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Old 05-18-2011, 03:59 AM   #10
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Quote:
Originally Posted by Gti_Leo View Post
see my point was there is a huge drop in par rating from LEDs, not sayign they are no good by any means.

whats the total wattage of this fixture with how many LEDs
More importantly, what's the price? Unless you DIY, LEDs are going to be way more expensive than T5s; it will probably take a couple of years to be worth a T5 fixture (energy and bulb savings).
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