Chinese LED Lights

Zedar said:
UV is from 240 - 400 nm The bridgelux UV LED's are 420 nm. So were talking violet not UV. 420 is the same wavelength of actinic bulbs. So I wouldn't worry about harming corals with 420 nm LEDS.
Click to expand...

Actually, the UV leds I got from Sam are not 420. I tested them and they barely light so I was just thinking they may be useless. The marking on the bag they came in was 400 but then it could be something else.

As it is right now my D120 with the WW, reds and violets seem to be a bit better for color but I have a couple more Violets I may put in and more reds too. I am just curious if the reds will grow algae over time.

4 months into the D120 and I have gotten great growth. I am truly impressed with LED's over MH and T5's. I never had this much response in all the years so fast. I am still waiting to see in 6 months or more how well the lights do and hopefully years down the road. I am holding off on buying the newer unit until more feedback is known. I think by tweaking the lights and switching led's out to get the best spectrum all around is the key before ordering a newer version for me.
 
Mr Neon said:
Actually, the UV leds I got from Sam are not 420. I tested them and they barely light so I was just thinking they may be useless. The marking on the bag they came in was 400 but then it could be something else.

As it is right now my D120 with the WW, reds and violets seem to be a bit better for color but I have a couple more Violets I may put in and more reds too. I am just curious if the reds will grow algae over time.

4 months into the D120 and I have gotten great growth. I am truly impressed with LED's over MH and T5's. I never had this much response in all the years so fast. I am still waiting to see in 6 months or more how well the lights do and hopefully years down the road. I am holding off on buying the newer unit until more feedback is known. I think by tweaking the lights and switching led's out to get the best spectrum all around is the key before ordering a newer version for me.
Click to expand...

UV 400nm is very dim. Just because it looks dim doesn't mean it isn't there. I prefer 420nm actinic however. Using reds sparingly won't spur algae growth. Using too much of it would.

Despite using a similar ratio in my Cree light and IT2040/120, the Cree light has a warmer, slightly more pleasing look to it, but it also grows cyano like crazy... most likely due to wattage and spectrum differences. Algae is under control with the new light, even with red/cyan added.
 
bhazard451 said:
The only thing different seems to be no optics. It also looks like they use resistors for each led, so I'm not sure you can just swap leds at will like you can with the Evergrow version. Led swapping is a huge deal for me, as I change leds nearly weekly until I hit perfection. I just added 3 reds into my fixture last night and liked the effect.

They may have quoted the price without shipping as well. Shipping would be another $60+ per unit, otherwise it looks like a good deal. Would need to know the current they run the leds at, and if they're a good bin (actually bright).
Click to expand...

Is there anyway to tell if they are a good bin besides actually seeing them?
 
soul4surfin said:
Is there anyway to tell if they are a good bin besides actually seeing them?
Click to expand...

Ask. See if they'll tell you how many lumen per watt lm/watt the whites are. I've seen huge variances from different companies. The twilight group epistar whites were dim, even at a higher current, compared to the Evergrow Bridgelux whites, which are bright as can be.
 
bhazard451 said:
Ask. See if they'll tell you how many lumen per watt lm/watt the whites are. I've seen huge variances from different companies. The twilight group epistar whites were dim, even at a higher current, compared to the Evergrow Bridgelux whites, which are bright as can be.
Click to expand...

What are the lumen per watt lm/watt for each one of those?
 
skyrne_isk said:
So here is the final quote I got:


48" x 10" x 2.5" fixture - 88 x 3w Bridgelux
88_3.png


Color Temp #
White 10K 14
Cool White 14K 16
Blue White 18K 8
Moon Blue 453 14
Royal Blue 460 28
Actinic Purple 427 8
Total Leds 88

Around $550, shipped. So two issue I am on the fence on:

1) Is one of these enough for a 60" x 30" 24"? or do I need two? I am getting differing opinions on whether or not the hanging height that will give me enough spread will give me enough intensity

2) There is a built-in auto dim timer function that I think I would rather not have. I believe it will be a pain to program to work in conjunction with the rest of the controller I have (Apex or ACIII). The only downside is that I will also lose the remote control that allows the blue and white channels to be adjusted - instead it will be manual potentiometers. I do not believe it can ramp the colors up or down throughout the day (even with the built in timers) and it saves $50 off the cost. I am not sure I care about anything other than being able to tweak the color, but changing colors seems to be something you tweak as the light is first set up, and then forgotten about. Do any of you with LEDs that brighten throughout the day find it to be a big feature? Coming from the world of MH, it seems to be but a bells and whistle thing.....

These are the operating instructions, you will probably need to view the attachment to read it:
OperatinginstructionofLEDaquariumlight.jpg


What do you all think?
Click to expand...

What's the verdict on these lights? I'm very interested but not willing to throw a couple of bills for being the guinea pig. Everyone seems to be talking about the other led lights. I find this fixture looks better since it can have the same lenght as your tank width.
 
I do not have that light but my only worries would be having the LEDs at each end so close to the side of the tank. Would def need to have a canopy so to not allow tons of spillage. Because of the size of the light, not sure I would hang it. I would use legs like in a coralife t5 fixture which means most tanks cross beam supports would block some of the LEDs. Last issue is also size related, if you had to do work on it or if it breaks, you will have to wrestle around its size or order a whole new fixture. With the D-120's and the IT 2040 everything is more convienient and cost effective in my opinion ;)
 
So hazard, do you still like the razor and radions better than these units overall? These seem to have awesome flexibility but are those still the superior fixtures?
 
bhazard451 said:
I'm not sure. It could be a pot resistance type thing being different or underpowered driver maybe? Probably isnt the driver if it gets just as bright at 100%. Talk to Sam or someone aside from sunny, and see what they say.
Click to expand...

How can I get in touch with Sam? I have a question and haven't had a response from Sunny.
 
I would definitely like to see what bhazards rankings are of all the LED fixtures he has used (chinese + non-chinese leds)
 
soul4surfin said:
Gehl Led Lamps
Sales Rep: Brian Sun

I got a quote for the equivalent for two of IT2040 (programmable and DIY) 90 degree plug, 3w, 120w (still checking on remote and hanging kit) for $420. Seems like they are beating the competition by $180. WOW. This seems like an easy choice. These are the images hey gave me when I asked.
Click to expand...

You were right. I was quoted $430 + free shipping for 2 lights, with a 2-3 week wait. The current is 600mah too, so they get plenty of power.

The only unknown is if it is wired in series for easy led swapping, or parallel. That is substantial savings if it works just as well.
 
The problem Is I got the light second hand and there are no brand names on it.. I'm stuck at this point without at least an idea of what I need
 
Guys, what do you think about this full-spectrum layout for the IT2040?
ImageUploadedByTapatalk1348258556.633083.jpg
Anybody know when the cree model will be available?

Thanks!
 
You must log in or register to reply here.

Similar threads

K
Radion time help. (Long post)
Replies
2
Views
136
kj swans
K
T
Alternative Lighting for Biocube 29
Replies
0
Views
113
thommyboy12183
T
G
A8 lighting
Replies
10
Views
3K
graziano
G
G
New here! Here’s my 150G tall glass cages mixed reef aquarium
Replies
10
Views
457
Uncle99
Uncle99
newsalt
Aqua Illumination SOL Blue problem
Replies
2
Views
155
oreo57
oreo57
Back
Top