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Topic Review (Newest First)
04-09-2015 10:11 PM
Trigger334
Quote:
Originally Posted by BruceF View Post
I skipped through most of that but did you ever give any par values or pur for that matter?
The video was not to endorse any LED, so I did not provide PAR or PUR values. Keep in mind PAR values can be very mis-leading because a LED could have a smaller PAR number, but have more PUR. Making an overall fixture with less "PAR" having much more growing power.

It's recommended to take a look at each emitter used in a LED to see our the PAR values are coming about.

Someone cannot say, oh this plant takes "this much PAR" to grow, because PAR is subjective from LED fixture to fixture.

http://www.aquarium-pond-answers.com...-lighting.html
03-14-2015 09:03 PM
BruceF I skipped through most of that but did you ever give any par values or pur for that matter?
03-14-2015 08:00 PM
Trigger334 Hi everyone,

I recently made this Aquarium LED PAR/PUR video I was hoping I could get some feedback on. It goes into some aspect I believe are a little misunderstood.

https://www.youtube.com/watch?v=-T4FKchXASs
01-05-2015 05:20 PM
jeffkrol
Quote:
Originally Posted by Raul-7 View Post

This illustrates a point with LEDs if you notice the wavelengths they output.

http://www.reefcentral.com/forums/sh....php?t=2198810

http://www.aquaticplantcentral.com/f...nts-light.html

Note how T5's and MH output more light in those needed wavelengths; hence why I wouldn't use LEDs alone but rather as a supplement to MH or T5
not really...
It is an option, and one reefers lean to but in no way holds w/ a proper choice of LED's.. just ask the hort. world, when factoring in cost of operation..
sure 350W MH beats out a 20W led setup by sheer brute force and wasted watts..



http://www.americanaquariumproducts...._lighting.html

Quote:
In tests for plant nurseries (Green House, Hydroponics) full spectrum LEDs such as the newer generation TMC GroBeam Aquarium Lights, 3-10w LED Grow Lights, or even the older generation LED Grow Lights have been proven to surpass even Metal Halide Lights in both growth and useful output.

The picture to the left is the plant growth results comparing the same Kelvin output LED and Metal Halide Lights as measured by a PAR Meter (please click to enlarge view).
Quote:
LED Summary; The bottom line is when you compare an LED Aquarium light to the many popular CFLs and even T5s in terms of lumens per watt, focused lumens, PAR, PUR, lower wasted yellow/green light energy, low heat output, energy consumption, long life (25,000 to 50,000 hours vs. 8000 hours), the modern recent generations of LED Fixtures are generally the best available aquarium light.
This includes the patented emitter ultra premium high PUR per watt AquaRay AquaBeam or GroBeam LEDs as well as the still VERY capable Aqua Illuminations, EcoTech Radion, ZetLight (aka Maxspect), and few others.
Most premium LEDs are a better light even in long term cost since (as an example) a 12 Watt Aqua Ray GroBeam 6500K daylight (either #600 Strip or Mini #400 Tile) can easily replace a up to a 80 Watt power compact (also daylight) when you compare ALL aspects of lighting as presented in this article.

When compared to even older T8/T12 aquarium lights, a forth generation TMC AquaBeam & GroBeam High End LEDs require only 15% (or less) of the wattage for the required light energy of a planted or reef aquarium.
This is as little as .6 watt per gallon for high light planted aquariums and .8 watt per gallon for Reef for the TMC AquaRay and 1.25 -1.5 watt per gallon for the ZetLight, EcoTech & Aqua Illuminations, and 1.75 -2.25 for many other LEDs such as the Ocean Revive, Taotronics, etc. (Acroporas may require a higher wattage input per gallon)

Any flaws of LED aquarium lights are quickly disappearing and based on the energy savings for the premium high PUR LEDs with PWM technology as compared to MH.
In fact for Planted Freshwater the top LED Lights (with the highest PUR) have few limits in their applications.
01-05-2015 05:13 PM
Raul-7

This illustrates a point with LEDs if you notice the wavelengths they output.

http://www.reefcentral.com/forums/sh....php?t=2198810

http://www.aquaticplantcentral.com/f...nts-light.html

Note how T5's and MH output more light in those needed wavelengths; hence why I wouldn't use LEDs alone but rather as a supplement to MH or T5
01-03-2015 06:29 PM
DexterFreeman
Quote:
Originally Posted by danmd View Post
Don't know if this piece of information is available, just want to give out my first contribution to the community. It is about the PAR values for the Finnex Ray2



According to the Finnex representative, the Finnex Ray2 is better than the Planted Plus for big tanks
If my tank is 20 inches deep, and then say I have 3-4 inches of substrate, would either the Planted+ or Ray2 be enough for high-light requiring carpet plants? They would be sitting at 17 inches below the rank rim at the lowest. According to OP a PAR above 80 is considered high. I guess its cutting it too close?
11-15-2014 02:30 PM
DayOlder Great resource. Thank you for your time and work.
10-06-2014 06:26 PM
Aganor Hi all, i bought a brand new TMC 1500 Ultima 6500k DayLight, does anyone have any home PAR readings? the only one i have is the one on the reviews, 148 PAR @ 16",
I would be thankful for some hobbyst review on it since im going to use it at 16" from soil.
10-01-2014 12:39 AM
treyLcham i was just about to buy two marineland dual led light fixtures. My tank dimensions are 36x18x18" and i will have about 2.5in of soil when i put it together. My question is that i think 1of the 36"-48" would do good for low to at most mid so i was thinking in this case that two of them would give me a high range? IS this what i should be doing or should i only be getting one fixture. Also i would like to add that they would be hanging about 1foot above the water. Hope someone can answer this question! It would really help in my decision making before i go out and blow through 500$
08-31-2014 03:40 PM
BarryG I cannot find the blog that described a DIY retrofit of the stock light on the Fluval Spec V with solderless Cree LEDs.Â[censored]

Does anyone recall this discussion or have a recommendation for how this is done on the Fluval SpecÂ[censored]V?

Your advice would be appreciated.Â[censored]


Sincerely,Â[censored]


BarryG
08-11-2014 07:40 PM
AnotherHobby
Quote:
Originally Posted by jpezz333 View Post
I have had the Current Satellite + on my 46 bow planted tank for 6 months. I am not impressed. Not sure about PAR values but the fixture is dimmer than my T5 fixture and the plants are not doing as well as they were with the T5's. I still have 1 T5 bulb on the tank with the Current LED.

Several species of stem plants are rotting at the base or have totally died. I could not keep Pogostomen Helferi alive but my HC is doing fine. Growth of all plants has slowed. I am not sure it the problem is the penetration of light to the bottom of the tank or the spectrum.
What is that, almost 22" tall? Of course that's not going to do well. It's only putting out a little over 20 PAR at that depth. It's a great light for shorter tanks, not so much at all for tall ones. Heck, I have 2 on mine, and it's only 12" from the substrate.
08-11-2014 05:04 PM
jpezz333
Current LED

Quote:
Originally Posted by shiftysquirrel View Post
I'm looking for PAR data on Current's new Satellite LED+ light and haven't been able to find it on here yet. Has anyone had good/bad experience growing plants with it?
I have had the Current Satellite + on my 46 bow planted tank for 6 months. I am not impressed. Not sure about PAR values but the fixture is dimmer than my T5 fixture and the plants are not doing as well as they were with the T5's. I still have 1 T5 bulb on the tank with the Current LED.

Several species of stem plants are rotting at the base or have totally died. I could not keep Pogostomen Helferi alive but my HC is doing fine. Growth of all plants has slowed. I am not sure it the problem is the penetration of light to the bottom of the tank or the spectrum.
07-14-2014 03:52 AM
ScaryFatKidGT Can we get the Fluval and Marineland planted tank light in here?

For the Marineland the (not very specific) manufacturer specs are ...our light has 1 watt, 6,500K white leds and 3 watt RGB LEDS (RGB means 460 nm blue, 660 nm red, and 660 green). Each type is a different spectrum and serves a different purpose for plant growth. PAR/LUX at a depth of 12" would be 172/10530 and at 24" would be 83/4810. These numbers are for all four models.
07-04-2014 05:26 PM
pixelpunk Thanks for running that down jeffkrol.
07-03-2014 08:50 PM
jeffkrol
Quote:
Originally Posted by pixelpunk View Post
I am looking for this as well. I'd even settle for the the ANSI lumen rating.
better:

Quote:
  • Staff
  • Thank you for your question. Per the vendor:
The Edge will grow low-med light plants. The wattage is as listed below.
24” = 30w
36” = 48w
48” = 71w
Also, if the tank is wider than 12” front to back they will need 2 Edge fixtures.
Best:
Quote:
so i just called and spoke to a rep there. he gave me the following specs.
first, my tank is a 125g. 72"wide 18" front to back and i believe 23"deep.
..
..
at 12" depth the par is 95-105, at 18" the par is 55-65. he did not have a rating for deeper than that. my actual water depth is probably closer to 20" when i subtract the rim thickness and the substrate depth.
i would say i have a good 40 par at 20"?
he also said at 16.5", the lumans are about 4240-4250.
Read more: http://www.tropicalfishkeeping.com/b...#ixzz36ROZqvK8
also:
http://www.plantedtank.net/forums/sh...d.php?t=577321
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