chinese led lights

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Would you be able to post pics when you do it please? I already have bridgelux LEDs and if my twilight fixture is as bad as you guys say I will prob do they same.
 
mlott132 said:
All I can say is WOW. Anyone seen these yet.

http://szxsled.en.alibaba.com/product/602776470-213985890/2012_New_350W_great_for_Larger_Deeper_Aquariums_with_Stony_Hard_Corals_Polaris_Led_Aquarium_Light_with_high_quality_CREE_LEDS.html
Click to expand...

I'm not too sure about those. That's a lot of red in there.

You would need to find out the exact leds they are using. Are the middle Epistar 10w leds? Cree on the outside? Lots of details missing, but it does look cool. Might be pricey too. Ask for a quote.
 
bhazard451 said:
I'm not too sure about those. That's a lot of red in there.

You would need to find out the exact leds they are using. Are the middle Epistar 10w leds? Cree on the outside? Lots of details missing, but it does look cool. Might be pricey too. Ask for a quote.
Click to expand...
I sent them an email and will post their response.
 
Those lights Lott posted about are sweet, but like hazard said a lot of red and can the ratio be adjusted to what you want, and of course price could be the killer
 
bhazard451 said:
No. I would do what I did with my Nova. I would ditch the entire pcb board completely and wire up crees on stars. They can be attached with thermal adhesive to the heatsink.

Since the drivers are only running at 630mah, it would be a bit of a waste to use crees though. I just ordered 20 Bridgelux CW and WW leds and I'll add them in.
Click to expand...

When you were playing around inside the Twilight fixture did you notice if the Led drivers would be controllable by an external contoller, ie 0-10v, PWM
Cheers
 
Bhazard, if Twilight had a PCB setup like this we would not have the problem we have now correct? I would think that it would be very easy for them to setup as it matches what others have done. As well as telling them how we want the colors placed. Hope to hear from Lyn soon so I can find out what my options are.

LEDGridLayout.jpg
 
Hmm. So people are happy with evergow. I think i'm going to try to get them to
add a controller or external dimmer interface to their products. They use pots
To dim the lights. Can anyone measure the voltage range/amp or watts?
Maybe and easy mod to the dimming circuit could be made so it could be
Controlled by an external reef controller?

I think I'm going to order an a4 or d120 to play with. There has to be a way to mod it

Mike
 
livingseas said:
Hmm. So people are happy with evergow. I think i'm going to try to get them to
add a controller or external dimmer interface to their products. They use pots
To dim the lights. Can anyone measure the voltage range/amp or watts?
Maybe and easy mod to the dimming circuit could be made so it could be
Controlled by an external reef controller?

I think I'm going to order an a4 or d120 to play with. There has to be a way to mod it

Mike
Click to expand...

Evergrow is actually making a new light with a built in controller. They are going to let me know when it is released.

I already modded the Nova A4 to allow Reef Controller dimming and posted instructions on how to do it way back in the thread. You basically need to get two 0-10v dimmable (or pwm if your controller uses that) 60 watt, 90 volt drivers running at 630 mah, and re-wire the fans to their own outlet.

I went really nuts and made my Nova into a 180w DIY Cree XT-E light, but that's a much more involved mod.
 
bhazard451 said:
Evergrow is actually making a new light with a built in controller. They are going to let me know when it is released.

I already modded the Nova A4 to allow Reef Controller dimming and posted instructions on how to do it way back in the thread. You basically need to get two 0-10v dimmable (or pwm if your controller uses that) 60 watt, 90 volt drivers running at 630 mah, and re-wire the fans to their own outlet.

I went really nuts and made my Nova into a 180w DIY Cree XT-E light, but that's a much more involved mod.
Click to expand...

There has to be a way to mod the existing driver circuits without having to buy new ones.
I'll have to dig into it.
 
livingseas said:
There has to be a way to mod the existing driver circuits without having to buy new ones.
I'll have to dig into it.
Click to expand...

Nope. We already tried that too. That was what I was originally hoping for.

The drivers use resistance dimming, and there was no way to get them to accept 0-10v properly.
 
mlott132 said:
Bhazard, if Twilight had a PCB setup like this we would not have the problem we have now correct? I would think that it would be very easy for them to setup as it matches what others have done. As well as telling them how we want the colors placed. Hope to hear from Lyn soon so I can find out what my options are.

LEDGridLayout.jpg
Click to expand...

As long as everything is mixed well like that, they should look good. Our problem was that they just threw leds into our fixtures and didn't even bother to see if it would look good. I didn't like that, and it reflects poorly on them.

The Whites they use look a bit dim to me, so 1:1 whites to blues would look best.
 
Hey i was wondering did anyone ever have a chance to test the PAR readings on the a4? I can't remember if that was posted in this thread a while back or not.
 
bhazard451 said:
As long as everything is mixed well like that, they should look good. Our problem was that they just threw leds into our fixtures and didn't even bother to see if it would look good. I didn't like that, and it reflects poorly on them.

The Whites they use look a bit dim to me, so 1:1 whites to blues would look best.
Click to expand...
Thanks. I am going to introduce this to Twilight and see what they say.
 
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