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the only way to really compare the bridgelux and the cree is to put both at 700mA and put a par meter under it.
i used to have the brdigelux, the chinese drivers are crap, it's either dim or bright nothing inbetween like a linear gradual ramp.
Bridgelux LEDs obviously work, they are in the first reefkoi fixtures and the first reeffiltration fixtures and everyone loves those. BUT, I've read that the Cree put out more lux than the bridgelux and you need more to get the same results. That being said im tempted to pick some of these up and do a side by side comparison next to my DIY Cree fixture just to see the difference in color and growth. Also has anyone seen the post on the reefled forum comparing different Cree bins, I'd imagine it would be the same kind of deal with the bridgelux LEDs. How do you know what you aregetting are there bin numbers for the bridgelux?
Pngaudio, just a heads up, 20 crees over a 29 gallon wouldn't be enough light so I'm guessing 20 bridgelux won't do it either.
if you want to do a head to head comparison (like i did)
i ahve 50 bridgelux LED and 3 chisnes drivers for cheap. look up my previous post.
reefkoi used more LED's to achieve the result they wanted.
i did a 48 bridgelux vs 48 crees, the par is not close either.
they were all of the same distance, left to right front to back, even base on visual inspection, bridgelux is duller and darker.
now the only way to prove what i said is true is to do a comparison yourself. unfortunately i didnt take any pictures when iw as doing the experiment. i have done my research and experiment, if you want to prove me wrong, do one urself too.
if you want to do a head to head comparison (like i did)
i ahve 50 bridgelux LED and 3 chisnes drivers for cheap. look up my previous post.
reefkoi used more LED's to achieve the result they wanted.
i did a 48 bridgelux vs 48 crees, the par is not close either.
they were all of the same distance, left to right front to back, even base on visual inspection, bridgelux is duller and darker.
now the only way to prove what i said is true is to do a comparison yourself. unfortunately i didnt take any pictures when iw as doing the experiment. i have done my research and experiment, if you want to prove me wrong, do one urself too.
hopefully by then you still have corals left.I ran the numbers - and if Cree is 1.5 times brighter/better/more lux than bridgelux, it would take 9.2 years to realize a payback of the cost difference. And that is with me using more bridgelux.
That takes into account electricity and the cost of tue LEDs.
Good enough for me.
take it as you will.So are you here to discuss? Or are you trying to sell them? :wink:
for what, so people will shoot it down?How about posting the numbers you got as well?
it doesnt upset me, why would it upset me?
it's not mine, i used to have one for testing purposes.
maybe you can save $ by sending me to $30 or a nice zoa frag and i send you the 50 LED's i used for testing. 30blues and 20 whites + 3 chinese drivers.
base on my testing, the par on the sand is below 100 on the bridgelux, with cress it is upto 200. i dont have pics to prove it, but i have the 50 LED's i took out.
EDIT: i got 40 optics too that came with the LED's.