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Post by Carl on Jul 31, 2009 19:10:36 GMT -5
Here is a video I made that shows a before and after in a 60 gallon marine tank I am over-hauling for a local client. The before is with two 36 watt Coralife 10,000K PC lights, the after is a single 21 watt LED (6500K daylight & actinic mix) Eventually I hopefully can convince these clients to add two for better coverage (as well some live rock and more fish to bring this tank further out of the "stone age", but they can only get these improvements after a corporate office approval, so not too likely in the near future) Carl |
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Post by bikeguy33 on Jul 31, 2009 23:43:20 GMT -5
I didnt realize you had maintanance clients carl. great comparison...
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Post by Carl on Aug 1, 2009 9:10:57 GMT -5
I didnt realize you had maintanance clients carl. great comparison... Only three as compared to the 100s before in LA (I do not have the time). However I still utilize Gregg (who owns my old business in LA) to perform a lot of test and get feedback from, not to mention I meet with other maintenance persons while in LA for further feedback, etc. As for the lights, this tank should have two strips for its size, and so this comparison is not as good as it could be, but even then with just one small strip, this clearly shows the superiority of LED over most fluorescent (just in human eye terms, not to mention PAR, focused lumens, etc) Carl |
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Post by goldenpuon on Aug 1, 2009 10:50:15 GMT -5
I definitely see a difference. The coral looks much whiter under the second type of light and the tank looks brighter. I can see how 21 watt LED is better. Thanks for posting!
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supi
Full Member
Posts: 66
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Post by supi on Aug 1, 2009 20:39:15 GMT -5
Thanks for posting. It is great to see a comparison.
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Post by fishfever on Aug 2, 2009 10:13:16 GMT -5
This was interesting especially given the LED is a far lower power light. I made the screen full size and was able to click back and forth on the slider to do an instantaneous A/B comparison. I do see a slight edge in brightness to the original at the ends do to size difference but in the center area the LED is at least as bright, probably brighter. But what I really like more about the LED though is the more natural color spectrum; the 10k PC seems much greener and monocolor to me. Does this LED lighting have some sort of programmable controller to adjust parameters and simulate sunrise/sunset, etc.?
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Post by Carl on Aug 2, 2009 17:20:56 GMT -5
This was interesting especially given the LED is a far lower power light. I made the screen full size and was able to click back and forth on the slider to do an instantaneous A/B comparison. I do see a slight edge in brightness to the original at the ends do to size difference but in the center area the LED is at least as bright, probably brighter. But what I really like more about the LED though is the more natural color spectrum; the 10k PC seems much greener and monocolor to me. Does this LED lighting have some sort of programmable controller to adjust parameters and simulate sunrise/sunset, etc.? You're right as to the center being much brighter, in person this is even more noticeable (the staff in this office commented to this extent as well). This prototype has separate controls for each nanometer control for green, red, & blue (red being the higher nanometer of th three while blue the lowest and green in the middle). These can be turned up or down to create all white or show more of one color. As well there are several 6500K white only emitters that can be turned up or down. In the case of this LED strip, I have the 6500K white all the way up and the 450 NM Blue all the way up. In answer to your question, you could blend the colors to make a light comparable to sunrise/sunset and then with more than one strip (& a timer) you could turn on this strip first and last to give this effect. I should note that this is a prototype, the Aqua Ray LED currently available comes in preprogrammed emitters, although the one I prefer is programmed just as I had this prototype set (with 3/5 white and 2/5 blue). This prototype should be in production within a month or two, but even with the Aqua Ray, and when considers price, output, low operating temperature, low electrical consumption I am amazed that these have not already made many of the PC and similar lights obsolete (especially for Reefs & even more so Nano Reefs) See: Aquarium Lighting; Types including LED, SHO, T5, power compactCarl |
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Post by goldenpuon on Aug 3, 2009 15:19:26 GMT -5
Wow. You can even use the light to create an impession fo a sunset? That is an excellent light, especially for stimulating fish to breed with day length I'd imagine. It sounds like it would be an expensive light but maybe one I could get in the future.
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Post by Carl on Aug 3, 2009 16:05:35 GMT -5
Wow. You can even use the light to create an impession fo a sunset? That is an excellent light, especially for stimulating fish to breed with day length I'd imagine. It sounds like it would be an expensive light but maybe one I could get in the future. The current generation LED is about $175, but the newer ones comming are promising a lower cost. Carl |
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Post by fishfever on Aug 3, 2009 17:07:50 GMT -5
I'm looking forward to mass production getting the prices down for the smaller hobbyists. My main interest is improving the lighting in my tank without dramatically increasing the power, having simulated natural light and simulated sunrise/sunsets to avoid the daily on/off startle "shock".
Yes goldenpuon, with RGB LEDs you can create pretty much any kind of lighting imaginable by varying the intensity of the Red, Blue and Green to match a particular color intensity. For example if you have African fish you might want to simulate a sunny day in Kenya for example or maybe a rainy tropical Amazon day for your South American fish. Ideally the LED controller would vary the settings throughout the day including the sunrise and sunset. The problem in the past is that the older LEDs have not had enough brightness but with the new generation LEDs this is no longer an issue as you can see with Carl's video.
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Post by goldenpuon on Aug 4, 2009 14:01:41 GMT -5
Thanks for clarifying fishfever. It is indeed a great step forward in the pet fish industry. If the prices go down over time, then many people will be able to afford it and since the light quality is so bright and good for the fish. If it was less, I would certainly get one to try it out.
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Post by Carl on Aug 4, 2009 16:00:57 GMT -5
Wow. You can even use the light to create an impession fo a sunset? That is an excellent light, especially for stimulating fish to breed with day length I'd imagine. It sounds like it would be an expensive light but maybe one I could get in the future. The price should be lower in the future, but even now the $175 price tag is considerably less than the nearly $1000 price tag for inferior LED lights Carl |
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