chinese led lights

[tomgndallas]

I made a 16k equivalent layout last night I can post when I get home. I like going 3:2 blue to white. I also designed a different layout that uses red and violet I might post as well. It is still too early for me to tell about the algae but will keep an eye on things and report back.

hey man,

this has probably has been spoken to already before, but how are you estimating the Kelvin? I have been asked this before and could not answer only to say...

...well, by using more blue to white, you can achieve a crisp bluer white color that approaches 20K...

I pretended I was a professor when I was saying it.

 

[chucko]

Ok, at least I know I am not crazy now. I thought that was very much the same light.

So is evergrow still thinking about coming out with a controllable light? Dimmable from an RK or Apex? I thought I read that here.

I know Reefbreeders already does. The lights I ordered have two dimmers (whites, reds, greens, and violets on one, royal blue on the other). I think for an extra $100 they will add the ability to be controlled by apex. I obviously dont have the lights yet so I cant say how they perform but they are only about $20 more than evergrows - with dimmers, 2 yr US warranty, and they responded to emails pretty quickly so it was worth the small extra cost to me.

 

[mlott132]

How many of each LEDs are you going to use?and do you want it 16k when on 100%?

I was thinking of using..

3 - moonlights at 460nm
2 - red at 660nm
3 - violet at 400nm
12 - blue at 440nm
12 - blue at 470nm
12 - white at 10000k
11 - white at 6500k

I am planning on 90 degree beam angle LEDs and would like to have it at 16k around 75% power. I think 100% would be way too bright. I have an email into Lyn to find out the availability of the grid dimmer layout. Someone else had posted that they were going to build one and if it is available I would like that option.

 

[Zoanut]

I was thinking of using..

3 - moonlights at 460nm
2 - red at 660nm
3 - violet at 400nm
12 - blue at 440nm
12 - blue at 470nm
12 - white at 10000k
11 - white at 6500k

I am planning on 90 degree beam angle LEDs and would like to have it at 16k around 75% power. I think 100% would be way too bright. I have an email into Lyn to find out the availability of the grid dimmer layout. Someone else had posted that they were going to build one and if it is available I would like that option.

That should be fine but try 4 violets instead. Also do you really want the moonlights? even on 5% they are still really bright, I end up turning mine off for awhile. If not then ask how many can be controlled on the third channel and see if you could put your reds, violets and some whites on that channel if you get what I mean.

 

[bhazard451]

hey man,

this has probably has been spoken to already before, but how are you estimating the Kelvin? I have been asked this before and could not answer only to say...

...well, by using more blue to white, you can achieve a crisp bluer white color that approaches 20K...

I pretended I was a professor when I was saying it.

I take the Bridgelux and Cree datasheets, combine the spectral plots, and pray. That or I use a commercial fixture's and try to mimic it. The plot would change the second you dimmed a channel anyway.

 

[mlott132]

That should be fine but try 4 violets instead. Also do you really want the moonlights? even on 5% they are still really bright, I end up turning mine off for awhile. If not then ask how many can be controlled on the third channel and see if you could put your reds, violets and some whites on that channel if you get what I mean.

I know on their current PCB there are only three leds on it. I will ask how many are on the grid style if available. To go with four violets I would probably eliminate one of the blues. I did read your comments earlier about the brightness of the moons and tested it with my existing lights. They seem as bright as the ones I have on my tank now,different type led altogether, so I might keep them. What do you think if I use two blue and one violet or two violet and one blue on the third dimmer?

Sent from my Thunderbolt via Tapatalk 2

 

[Zoanut]

I know on their current PCB there are only three leds on it. I will ask how many are on the grid style if available. To go with four violets I would probably eliminate one of the blues. I did read your comments earlier about the brightness of the moons and tested it with my existing lights. They seem as bright as the ones I have on my tank now,different type led altogether, so I might keep them. What do you think if I use two blue and one violet or two violet and one blue on the third dimmer?

Sent from my Thunderbolt via Tapatalk 2

Two violet and one blue would probably be the way to go. Let us know how it goes cause I will prob end up being another one when I upgrade to a bigger tank.

 

[mlott132]

Two violet and one blue would probably be the way to go. Let us know how it goes cause I will prob end up being another one when I upgrade to a bigger tank.

I just received an email from Lyn and they are going to do a grid style dimmer layout for me. I will post their dimmer layout when he sends it to me. I think this will help out alot with color mixing.

 

[rad1687]

What is the cost of the twilight unit? What advantages does it offer over the Evergrow units?

 

[Zoanut]

I think the grid style is a good idea but is only really needed if you are going to use optics as the light from the LED is much more focused rather than the 120 degree len's. In saying that the led placement is still crucial as can be seen from the one that bhazard got.

 

[Zoanut]

What is the cost of the twilight unit? What advantages does it offer over the Evergrow units?

The advantage is the timer/dimmer is has on it instead of having the knobs you set the times and % and it will slowly ramp up/down to what you put in. In saying that the Evergrow ones are suppose to come out with one at the end of this month. As for price I'll let one the the American guys tell you.

 

[mlott132]

I paid just over $500USD for two Twilight units including shipping to my door. They were setup with three dimmers. I am not sure what the pricing will be on the new circuit board, but I cannot see it being much more. Lyn told me that the new board is going to be released next Monday and will be capable of three dimmers. He will send me a copy of the layout next week so I can figure out where I want my LEDs. I will then post it here.

 

[Zoanut]

I paid just over $500USD for two Twilight units including shipping to my door. They were setup with three dimmers. I am not sure what the pricing will be on the new circuit board, but I cannot see it being much more. Lyn told me that the new board is going to be released next Monday and will be capable of three dimmers. He will send me a copy of the layout next week so I can figure out where I want my LEDs. I will then post it here.

So are you getting just the board? or a whole new light? if its just the board it shouldn't be too hard to take out the exsisting one and plug/solder in the new one. Let us know how much they are going to cost.

 

[mlott132]

They are going to replace the whole light at no cost to me. I asked about shipping just the board, but they did not want to take the risk of something happening to it during shipping.

 

[mlott132]

I asked Lyn about the moonlights and if it would be possible to control them by 1% increments. He said it was a good idea and it is something they are thinking about. He also suggested that instead of the 3W LEDs to use 1W. That way they would not be as bright.

 

[Zoanut]

I asked Lyn about the moonlights and if it would be possible to control them by 1% increments. He said it was a good idea and it is something they are thinking about. He also suggested that instead of the 3W LEDs to use 1W. That way they would not be as bright.

The 1w Leds would be ideal if they could add them as well as keep the 3 x 3w ones. Also I have noticed that the lights only dim in 2% increments, so as soon as it hits 2% they turn off so the 1% idea wouldn't work.

 

[mlott132]

So you can control your lights in 2% increments? I am only able to do mine in 5% increments. So would you want six LEDs for moonlights? Or are you saying to still have 55x 3W and then add an additional 3x 1W?

I did get a response from Lyn on changing out the 3W for 1W. You do not have to change the dimmer if you want to goto 1W, so you could just change out the LEDs.

 

[terancevan88]

For my mon lights I'm just going to add 2 true lumen lights
Color popping

 

[bhazard451]

So you can control your lights in 2% increments? I am only able to do mine in 5% increments. So would you want six LEDs for moonlights? Or are you saying to still have 55x 3W and then add an additional 3x 1W?

I did get a response from Lyn on changing out the 3W for 1W. You do not have to change the dimmer if you want to goto 1W, so you could just change out the LEDs.

1w royal blues would work well for those who think the 3w is too bright.

 

[mlott132]

What do you think would look better for moonlights?

1. 3x 1W blue
2. 2x 3W violet and 1x 3W blue