LEDs vs Metal halides.
I still cannot figure out how light emitting diodes (leds) can light up a tank as good as halides.
the Leds for reefs are they any different than the ones that you get in a flashlight? technology is great but it seems im always one step behind everyone else. ive moved from halides to T5s although cheaper to run still not as shimmering as Leds or halides. thoughts on Leds? halides? t5s? is one really much better than the other?:question: |
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I think LED probably have more good features than the other 2. I do miss my MH, but I wouldn't give up some of the stuff I have with my LED. |
how about livestock response on leds? corals respond good?
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It really depends what you want. I left t5s because I loved the shimmering halides offered. Loved the halides.... Hated the heat and power consumption so switched to LEDs and I love the control ability, lower heat and power consumption and not having to replace bulbs.
That being said not all LEDs are equal. The difference between led fixtures can as vast as comparing Mh to t5 to leds |
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I have AI SOL lights, which I feel are comparable to Radion, for the most part. I think either of these two are a good entry point. I also like the Kessil 350 lights for smaller tanks. Going up, you have Vertex or Mitras as the latest top end. |
Thanks Subman, never thought of that, Led quality.... once you buy them your pretty much stuck with whatever lumens and kelvins the bulbs put out. unlike Mh or T5s you really cant change the bulbs, well i guess you could but not really feasible Id imagine.
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I have a 3' Vertex Illumina 260 and love it! I also have 5 extra LED pads installed, 3 reds and 2 UV's. the customization available on these units is amazing. The fact that it doesn't heat my tank everyday or require fans to keep temps stable is great. It even calculates my monthly costs to operate and with the program I have running its about $7.50 a month!! Also there is no need to run the LED's at full strength either. My whites run max 40%, blue and royal blue around 70% peak and reds fluctuate through the day to help create a sun rise/set. UV runs around 50% throughout the day and is also used at night with the blues following a realistic moon cycle.
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You can get dimmable MH...
http://www.youtube.com/watch?v=U0CdJS_9Sy0 |
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I don't think you can beat MH, Imagine 2 400 watt MH over a 200 GL, wow but I just can't do it why, Costs, Heat, Glare, I have 2 Maxspect Razors over my 150 and They don't make a difference to the Fish that's for sure. The Corals seem to be happy, nice and bright, But what I enjoy is the Lack of heat, Lower energy cost, No difference in spectrum for awhile and they were affordable.
I hear people say you can have SPS with LED, that's a crock sure you can, They are bright. |
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oops you got me, LED is where it's at, For now anyway
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Pretty happy with my SOLS though. Used to run a huge MH fixture over my 240 Gals. that I got from another member here. MH used to run freaking HOT all the time, the fans that I installed on it were freaking LOUD too, well my fault for buying cheap fans but anyhow, I did the switch to LEDs and MAN, what a difference in costs, temp, noise, etc, etc, etc. At the beginning my corals had to go through an acclimation period. In about a month or so, all my corals were happy once again. Fish? they didn't even notice I think. For the control you can have on these LEDs units and the all other features they have, it was worth the change for sure.
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For true dimming the only one i know of that's readily available is the Sfiligoi ACLS system. http://www.3reef.com/forums/3reef-ra...goi-47867.html And regarding shimmer, my tiny Kessil a150 LED has more shimmer than my 250w halides had! Fixtures using many separate 3w chips don't produce the same shimmer as the cannon style pendant though. |
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