liz62
Community Member
Interesting in as good or bad??
I have sent all of your questions off in a email for some answers.
Here is some info.
Reefing The Australian Way Forums • View topic - BSLED Thread (LED light unit from china)
bysenled.com
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Interesting in as good or bad??
I have sent all of your questions off in a email for some answers.
Here is some info.
Reefing The Australian Way Forums • View topic - BSLED Thread (LED light unit from china)
SeeingGreen
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In case I missed it, what was the cost? I would like to compare to my build.
wld1783
Well-Known Member
40 Cree XR-E LEDs, Drivers, Heatsink, Fans and Housing for $189???
Caveat Emptor
Still dont know how many mA each LED receives. Many call a 120 fixture with 40 3 watt LEDs 120 watts even though they are driven a lot less to compensate for a small heatsink...Size Matters...
Also would like to see the spectrum...As specific Binning and individual LED drive current were not mentioned.
I personally drive my 3 watt LEDs at 700 mA
The proof is in the pudding.
I'd like to see results with growth and a PAR meter on a established reef tank before I buy this one.
Also what about some Pics and a PDF Data Sheet...The Aussi post was the typical 1 watt Chinese fixture found every where.
Caveat Emptor
Still dont know how many mA each LED receives. Many call a 120 fixture with 40 3 watt LEDs 120 watts even though they are driven a lot less to compensate for a small heatsink...Size Matters...
Also would like to see the spectrum...As specific Binning and individual LED drive current were not mentioned.
I personally drive my 3 watt LEDs at 700 mA
The proof is in the pudding.
I'd like to see results with growth and a PAR meter on a established reef tank before I buy this one.
Also what about some Pics and a PDF Data Sheet...The Aussi post was the typical 1 watt Chinese fixture found every where.
Last edited:
btkrausen
Fish Hoarder
I posted under your sponsor forum but no response? At least this thread has been giving me plenty to keep me busy, haha
Troylee
all about the diy!!!!!
Sounds way to good to be true..... I wouldn't trust them lol....
btkrausen
Fish Hoarder
FiReBReTHa
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you have that nice of a tank and you are skipping out on lighting?
Most people will tell you one of the mistakes they have made in this hobby comes from trying to save a couple of dollars and going cheap route and later on having to redo their purchase. Dont risk your SPS.
Perfecto Manufacturing 972098 Reef Capable LED Lighting System
The marineland fixture is not even that cheap and I would not recommend it to anyone.
liz62
Community Member
This is the reply that I got when I posed your questions:
a.for a singal Cree led, we can drive at 700mA, it is the maximum current for 3watt Cree leds. but if we make all the 40pcs 3watt Cree leds together,no company can drive them at 700mA, because this current will creat too much heat,this will effect the performance and life-span of the whole light. what's more, there is very few 700mA led driver on the market, also this is the technology limited of the leds.
b.please rest assured that the heat sink of our light is very good for heat dissipation. the size is suitable for the case of our light,meanwhile there are many grooves to increase the area of heat dissipation. we make so many 120w cree led aquarium light for our customers, the lights work very well and there is no problem of heat dissipation.
c. for the royal blue, it is 450nm, this is the best color for coral growing, also this color can make good environment for your corals.
d.cool white is very good for coral growing, this color can make corals full of vigour,all the customers make led aquarium light use cool white leds. according to our customers'feedback and research, 16000k--cool white is your best choice.
CJO
Valuable Member
There is your answer. It sounds like they drive them all in series with one driver. My guess is that they are driving them at closer to 300mA, which will result in much less light. It is fairly easy to find 700mA and up drivers, but you have to run several of them to compensate for the forward voltage of the LEDs. You also have to have a significant way of cooling them to drive them that high as well.
CJ
CJ
liz62
Community Member
I got this in a second email don't know it helps? is good or bad?
Regarding to your questions ,700mA we driving the leds at .
led's CREE Q5 ,the power change the AC to DC ,then the leds work under DC .
I donot know what is your meaning of "bin ",we welding the leds on the PCB panel .
we use cool white (14000-2000k ).usually we use 16000k ,this is most of our customers like .
Regarding to your questions ,700mA we driving the leds at .
led's CREE Q5 ,the power change the AC to DC ,then the leds work under DC .
I donot know what is your meaning of "bin ",we welding the leds on the PCB panel .
we use cool white (14000-2000k ).usually we use 16000k ,this is most of our customers like .
Troylee
all about the diy!!!!!
each led has it's own bin numbers which is like grade "a" or "b" etc.... of course we want the grade "a" it has the best color best lumen per watt output etc..... sounds like there just buying the cheapest ones possible and throwing a fixture together what you will notice is some are brighter and the colors will differ in the whites etc....even thou they are all cool whites they won't match if each one don't come from the same bin...
liz62
Community Member
Ok I sent another email asking again what the bin numbers are. I suspect though that these fixtures will be able to sustain my SPS - I mean 120watts with 3 watt crees on a 18" deep tank should be enough shouldn't it?
FiReBReTHa
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Its bad, the company doesn't know what they are doing.
If they are correct that the LEDs cant go over 700mA then they are not Crees.
If they are Crees than the company doesn't know what they are talking about.
Dont bother emailing them anymore, they are going to tell you whatever to try to sell it.
You asked if its a good fixture, no I dont think it is.
If they are correct that the LEDs cant go over 700mA then they are not Crees.
If they are Crees than the company doesn't know what they are talking about.
Dont bother emailing them anymore, they are going to tell you whatever to try to sell it.
You asked if its a good fixture, no I dont think it is.
CJO
Valuable Member
I thought in the other post they said that they are not driving the LEDs at 700mA? Also, the Q5 LEDs only go up to 10,000K. Maybe they mean the blue and white LEDs combined are near that range?
CJ
CJO
Valuable Member
You are thinking of something different. The white ones are Q5 bulbs. The bins basically just tell you a closer range on the colors. I have a paper here somewhere from Cree that shows the ranges. I'll put up a link when I find it.
CJ
Troylee
all about the diy!!!!!
I think you made up your mind let us know how it does lol.... You get what you pay for right???
FiReBReTHa
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liz62
Community Member
Actually, I have now put the whole led fixture on hold - I am not sure these fixtures will do the job or not based on what you guys have said? Not sure if the quality is good enough etc., etc.?
I obviously no nothing about LED's so I think I am back to searching for some other sort of light
I obviously no nothing about LED's so I think I am back to searching for some other sort of light
