chinese led lights

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Bhazard,
I have an75g reef with sps and lps corals. I purchased two evergrow d120s w/ 90 degree optics. I mounted the fixtures 6" above the water level in a 20" tall tank in a canopy. Should I remove the optics seeing evergrow's angle on their LEDs themselves are 90 degrees??
 
alcatoe said:
Anyone know where to purchase replacement led chips to fit these units? I have the one with the 3watt chips.

Thanks!
Click to expand...

I want to hijack this and add a question. I am thinking about changing those annoying cw's I have. Mine are Bridgelux, if I change do I need to stick to the same brand or can I get cree for example with no ill effects on the drivers?
 
nynick said:
I want to hijack this and add a question. I am thinking about changing those annoying cw's I have. Mine are Bridgelux, if I change do I need to stick to the same brand or can I get cree for example with no ill effects on the drivers?
Click to expand...

you can change to Cree XP series without ill effects on the drivers if you current chips are the 3W ones.

Is your current cw too yellow or too white? The Cree XP CW generally ranges from 7000-8300K, so they are pretty yellow.


I have LED colors from warm white to 12,000K of EPI, BridgeLux and Cree but unfortunately, I cannot show you a pic of the difference because my camera skill is terrible :deadhorse:
 
Thanks Wingo, they are too blueish and yes, they are 3w. Was hoping to just take them all out and get warm whites instead since I am currently running white,red and green channel at 90% and blue violet at maybe 20%. It obviously works but it is not optimal I guess. I am assuming that this will have some effect on the bulbs but how much I do not know.

Now I just need to lure some unsuspecting sap with soldering skills to my place. Wonder if cupcakes are good bait for electricians?
 
You can buy replaceable bridgelux leds from eBay, , and aqua style amongst other places. You just need the type with "legs" instead of stars so you can solder it directly in place of the previous led. You can't swap from bridge lux to Cree, the PCB board isn't designed for Cree.

You also can't swap if the fixture uses parallel wiring. Evergrow ones are in series and replaceable by any color. The twilight ones are in parallel I believe and would not allow changing to a led with a different fv. I tried.

Evergrow adds ICs in each of their LEDs to prevent an entire string from blowing out if a led died, so it is preferable to get LEDs from them instead of other places that may not add voltage protection.

Sent from my SGH-T999 using Tapatalk 2
 
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uhm..thanks Bhazard. If for nothing else but that WOSH! I just heard above my head :) I might just wait for a year or 2 when things have improved so much that I can just buy new stuff :)
 
I don't see anything wrong with it. You would want more 450 for the photosynthetic benefit over 440 though. Swap them.

No guarantees with custom ratios however. Some can turn out great, and some can turn out awful. I've seen both happen to me already. High risk/ high reward

Sent from my SGH-T999 using Tapatalk 2
 
Fish_Freek said:
Bhazard,
I have an75g reef with sps and lps corals. I purchased two evergrow d120s w/ 90 degree optics. I mounted the fixtures 6" above the water level in a 20" tall tank in a canopy. Should I remove the optics seeing evergrow's angle on their LEDs themselves are 90 degrees??
Click to expand...
 
Very very soon.

I have a pre production sample coming my way which should arrive this weekend.

I'll be a tester to see how everything works out over the tank, report bugs, and to review the fixture. It should be available around that timeframe, and I'm sure they'll make an announcement to those that have purchased from them before.

They will also want feedback to see if people want larger sizes, more features.. etc. It will evolve over time based on feedback, so speak your minds.



Sent from my SGH-T999 using Tapatalk 2
 
A lot of stores are offering labor day specials, maybe evergrow will offer the new light at a discount for labor day? Here's hoping! lol cmon release!
 
I have a 40 gallon breeder and would just need one of these fixtures. what size optics should i get in order to get full coverage. I would like to keep them less that 10" above the tank.
 
WingoLED said:
you can change to Cree XP series without ill effects on the drivers if you current chips are the 3W ones.

Is your current cw too yellow or too white? The Cree XP CW generally ranges from 7000-8300K, so they are pretty yellow.


I have LED colors from warm white to 12,000K of EPI, BridgeLux and Cree but unfortunately, I cannot show you a pic of the difference because my camera skill is terrible :deadhorse:
Click to expand...

Oh, forgot to mention the dimensions are different between Cree XP and Bridgelux, so you have to wire a star type heat sink to the contact separately.

EPI, Edison share the same dimensions with Bridgelux in general.
 
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