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Post by BriMc on Apr 22, 2014 10:24:21 GMT -5
72" fixture with 10 bulbs, sale here on the site mainefragswap.proboards.com/thread/2129/aquaticlife-fixture-bulbs-built-timerNice twist on facts, again state apples to apples if you are talking 80w lamps you are talking 8 lamps in a 60" fixture.
If you are stating 39w lamps yes you are can get 10 to 12 lamps.
btw- I have a 72"x24'x24 180g tank with 3x d120 led hanging 12" over the tank. I run blue 50-60% and white 30-40% so 65w x3 I have 195w of light over my tank. In actuality I don't think you really don't know what you are running for wattage over your tank or the amount of electricity your fixture uses. Lets see, off the Ebay listing for the D120 the fixture uses 55 3w LEDs in my book that is 165w but the listing states it is a 120 watt fixture. So they are running the LEDs at 3/4 capacity and that could be because of the driver issue I was referring to, now I guess the fans and transformers don't use any power? My though would be is that they are stating the light output of the fixture not the actual amount of total wattage used to run the fixture.
I can grow sps about 36" under the light itself at 1/2 power, lets put 195w of t5,pc,mh... over a 180g nothing will compare... I doubt you could even grow shrooms... |
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Post by BriMc on Apr 22, 2014 10:36:35 GMT -5
We need a par meter! There's one on fosters and Smith's for $100! PAR Meter is NOT accurate in important light energy spikes WITHIN the 400 to 700 nanometer range (plagiarized from another LED article ) |
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Post by jasonandsarah on Apr 22, 2014 11:03:17 GMT -5
The leds are only run at 2.2 watts apiece to make them more energy efficient and last longer. I think! Haha
These fans in the leds are very small and don't use much power at all my guess would be like 1 wait apiece but I could be way off?
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Post by gotareef on Apr 22, 2014 11:08:09 GMT -5
first off "3w led" are not 3w they are around 2.2w each dosnt matter the brand...
if a company is trying to sell a fixture with 55x3w and calling it 165w light dont trust them because they are twisting the facts.
a d120 led (55x3w) at 1/2 power pulls 65w (according to my rkl 3 lights pull .9 amps at 1/2 power)
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Post by jasonandsarah on Apr 22, 2014 11:09:10 GMT -5
We need a par meter! There's one on fosters and Smith's for $100! PAR Meter is NOT accurate in important light energy spikes WITHIN the 400 to 700 nanometer range (plagiarized from another LED article ) I like reading just as much as anyone but you really can't listen to every word in every article. People state opinions sometimes instead of facts. I really have no idea why they would even use par meters with leds if they're useless? |
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Post by gotareef on Apr 22, 2014 11:13:10 GMT -5
a par meter is used to match lighting for corals other than that it is useless
you can find the par numbers of the reefbreeders light right on their site.
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Post by BriMc on Apr 22, 2014 11:23:34 GMT -5
Good response Jason, that makes sense as that would be 121w plus fans depending on how they are run could vary from 2 to 18w each so lets say 4 watts each x2 is 129w and add 10w for the transformer and we are at 139w so close enough.
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Post by BriMc on Apr 22, 2014 12:30:00 GMT -5
PAR Meter is NOT accurate in important light energy spikes WITHIN the 400 to 700 nanometer range (plagiarized from another LED article ) I like reading just as much as anyone but you really can't listen to every word in every article. People state opinions sometimes instead of facts. I really have no idea why they would even use par meters with leds if they're useless? I never said a par meter was useless I stated they were Not accurate in important light energy spikes WITHIN the 400 to 700 nanometer range. Not only is this from an article it is from tests I performed in the light lab where I worked. So this is a fact Not an opinion. |
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Post by jasonandsarah on Apr 22, 2014 12:38:28 GMT -5
I like reading just as much as anyone but you really can't listen to every word in every article. People state opinions sometimes instead of facts. I really have no idea why they would even use par meters with leds if they're useless? I never said a par meter was useless I stated they were Not accurate in important light energy spikes WITHIN the 400 to 700 nanometer range. Not only is this from an article it is from tests I performed in the light lab where I worked. So this is a fact Not an opinion. Maybe you should of said that before? Lol I was just stating my experience with research in general allot of things on the internet have to be backed up with factual evidence because there's just way too much misinformation out there. |
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Post by BriMc on Apr 22, 2014 12:54:51 GMT -5
Jason My background before I moved to Maine was in Fluorescent and LED manufacturing and development. I stay very up to date with current technologies in both LED and Fluorescent technologies including driver and heat dissipation having many friends in the industry. I have set up roughly eight tanks using both Chinese and mid line fixtures and don't care for how they do their color blending. There are so many variables with the Chinese fixtures it is mind boggling. Some of the Mid to upper end fixtures are on the right path but are not there yet. The new fixture I will be using is a combination of 150w DE MH lamps, 39w T-5 lamps and 5 watt Leds Posted two days ago   |
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Post by jasonandsarah on Apr 22, 2014 13:13:55 GMT -5
We need a par meter! There's one on fosters and Smith's for $100! PAR Meter is NOT accurate in important light energy spikes WITHIN the 400 to 700 nanometer range (plagiarized from another LED article ) I saw your post from days ago....but this message was what messed me up because it says the quote is "plagiarized from another led article" so that's where I was confused I guess |
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Post by jasonandsarah on Apr 28, 2014 7:28:46 GMT -5
Long a$$ video.......worth every sec!
Want to Grow Corals - Try Plasma Lighting - Chame…:
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Post by gotareef on Apr 28, 2014 8:37:35 GMT -5
when you look at the reviews the companys info on these lights are comparing a 5500k plasma to a 10000k, 400w mh. to get the plasma color output to around 10000k you need to dim it down to around 40%.
when you compare a 290w plasma (5500k)to a 250w mh (6500k) par numbers are about the same.
imo- with an aquarium, the price of mh is cheaper in the long run even after buying replacement bulbs compared to the plasma.
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Post by jasonandsarah on Apr 28, 2014 13:32:36 GMT -5
It's not really about cheap though is it? This is designed for coral growth and plant growth. I'm just going by the video but it said compared to other light sources it had a 110% growth improvement over 1 month. I mean besides the upfront cost of the fixture I really don't see a ton of downsides to it? For coral farmers and the like. When I saw the chart it looked to be the broadest spectrum I've seen.
With the added 4 kessil deep blues you get the coral coloration you want as well. Idk I'm no expert but imo if I had to choose one over the other I'd choose lep.
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Post by gotareef on Apr 28, 2014 14:13:58 GMT -5
I have a plasma grow light. it works great for plants
but thats like putting a hps over an aquarium not the right light by the time you cut it back enough for an aquarium you would be better off with 150w mh
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