Looking for High CRI (95) Natural/Full spectrum 5000-6500K LED strip

[Doctorgori]

EDIT.
This thread has a LOT of crossover with this one:
Why do people run 6500K bulbs?

I created this thread without seeing the above…

I’m thinking about setting up an experimental 40 breeder with lighting duplicating noon daylight. Similar lighting to the old 6500K Iwasaki MH

Specs would be:

1. Under < 36”/1M
2. High CRI 90 >
3. Color temp 5000K - 6500K
4. at a minimum Aluminum or IPV6 or full waterproof housing
5. Enough Lumens/watts to deliver 250 - 300 Par to a water depth of .5M
6. smooth spectral spread. No big peaks, or red dominate so called “Full spectrum grow” LED

Tank surface is 18” x 36” so whatever and how many ever will fit over that

To see if this is even feasible, I’m trying to gather materials now, any help or advise appreciated.

added: Already searched 1000 Bulbs… Amazon looked promising but nothing with accompanying spectral graph

 

[minus9]

Have you looked at Quanta Pro Tropic Sun?

 

[Doctorgori]

Quanta Pro Tropic Sun?

Now I have…thank you…
It’s 12000K but no CRI data I could see…

Hmmmm These would have the look I’d bet but I’m trying to add more red spectrum to remove any excuse for not growing algae …

Still These might work as It might be a pipe dream to find anything near 5500K in the correct housing and wattage

 

[oreo54]

I’m thinking about setting up an experimental 40 breeder with lighting duplicating noon daylight. Similar lighting to the old 6500K Iwasaki MH

Specs would be:

1. Under < 36”/1M
2. High CRI 90 >
3. Color temp 5000K - 6500K
4. at a minimum Aluminum or IPV6 or full waterproof housing
5. Enough Lumens/watts to deliver 250 - 300 Par to a water depth of .5M
6. smooth spectral spread. No big peaks, or red dominate so called “Full spectrum grow” LED

Tank surface is 18” x 36” so whatever and how many ever will fit over that

To see if this is even feasible, I’m trying to gather materials now, any help or advise appreciated.

added: Already searched 1000 Bulbs… Amazon looked promising but nothing with accompanying spectral graph

Dig around Yuji..

CRI-MAX™ CRI 95+ 100W LED Floodlight 5000K

CRI-MAX™ CRI 95+ 100W LED Floodlight 5000K portable LED floodlight is convenient to install when you use it as an outdoor work light, or just as a led outdoor flood light, security lights, and more. This 100W floodlight is bright enough to be used for illumination purposes on large fields.

store.yujiintl.com

BTW easy enough to build a light with the right COB's.

6500k can be a challenge.. 5000-5500 not so hard.

NormLite™ Full Spectrum CRI 98 D65 6500K T8 LED Tube for Color Inspection - Pack: 3pcs2ft / 3-Pack

YUJI now release this high quality D65 LED T8 tubes which offer the high color rendering index (Ra 97+). These tubes could create an ideal viewing condition for critical color inspections. Energy use will be reduced by over 30%. These tubes could be used as standard light source for critical...

store.yujiintl.com

you'd need a bunch..

 

[oreo54]

Yuji products come and go... They have (had?) a presence in California. I'd contact them and see what they say in regards to "stuff".

There is this company too..

NorthLux™ 95 CRI T5 LED Linear Light Fixture

Integrated LED light fixture with simple power cord and plug-in installation - no separate fixture, bulb, housing, power supplies, drivers or ballasts needed. Mount onto virtually any surface using included screws or magnets. Ultra-high 95 CRI, R9 > 90; available in 5000K or 6500K Available in...

store.waveformlighting.com

Biggest problem is cost/watt..

 

[Doctorgori]

BTW easy enough to build a light with the right COB's.

6500k can be a challenge.. 5000-5500 not so hard.

Considering this

Dig around Yuji..

CRI-MAX™ CRI 95+ 100W LED Floodlight 5000K

CRI-MAX™ CRI 95+ 100W LED Floodlight 5000K portable LED floodlight is convenient to install when you use it as an outdoor work light, or just as a led outdoor flood light, security lights, and more. This 100W floodlight is bright enough to be used for illumination purposes on large fields.

store.yujiintl.com

I saw something similar on Amazon: Full waterproof, aluminum housing, IPV6 …so yes I did consider outdoor floodlight but still want to see the spectral graph as ideally there is a good balance of red

 

[Doctorgori]

Yuji products come and go... They have (had?) a presence in California. I'd contact them and see what they say in regards to "stuff".

There is this company too..

NorthLux™ 95 CRI T5 LED Linear Light Fixture

Integrated LED light fixture with simple power cord and plug-in installation - no separate fixture, bulb, housing, power supplies, drivers or ballasts needed. Mount onto virtually any surface using included screws or magnets. Ultra-high 95 CRI, R9 > 90; available in 5000K or 6500K Available in...

store.waveformlighting.com

Biggest problem is cost/watt..

Yeah I was there also…they actually make a base strip that I’d bet is the same thing w/o the housing …
So 8 was considering that bad boy also…

seem plausible to stay under $600 as it’s just a 40 breeder,

 

[oreo54]

Yeah I was there also…they actually make a base strip that I’d bet is the same thing w/o the housing …
So 8 was considering that bad boy also

Almost "by definition" 5000-6500k leds and a cri of 95 plus means your R9 (saturated red) is very high.
Next up is the cyan gap.. Some high cri fill it, some don't

Yuji CRI-MAX™️

Witness the power of light revolutionizing your environment with Yuji CRI-MAX™ LED lighting technology. Focusing on exceptional quality, our extensive research has culminated in the development of ultra-high color rendering LEDs that bring vibrant colors and accurate color representation to any...

store.yujiintl.com

 

[oreo54]

Yeah I was there also…they actually make a base strip that I’d bet is the same thing w/o the housing …
So 8 was considering that bad boy also…

seem plausible to stay under $600 as it’s just a 40 breeder,

Bridgelux makes EB strips that are easy to work with. Very cost effective as well.
CRI is "only" minimum of 90 but plenty of red.
There is a 5600k version

This again.. can't find 5600k for less than min order of 100

5000k are readily available

https://www.digikey.com/en/products/detail/bridgelux/BXEB-L1120Z-50S4000-C-C3/13181786?utm_adgroup=&utm_source=google&utm_medium=cpc&utm_campaign=PMax%20Shopping_Product_Medium%20ROAS%20Categories&utm_term=&utm_content=&utm_id=go_cmp-20223376311_adg-_ad-__dev-c_ext-_prd-13181786_sig-Cj0KCQjwgrO4BhC2ARIsAKQ7zUnzRo-HITWIGFwzQK-po6svXaqm_AwPgp7ZsCuZsp3yULBa1_Fsae0aAqiDEALw_wcB&gad_source=1&gclid=Cj0KCQjwgrO4BhC2ARIsAKQ7zUnzRo-HITWIGFwzQK-po6svXaqm_AwPgp7ZsCuZsp3yULBa1_Fsae0aAqiDEALw_wcB

 

[Doctorgori]

Bridgelux makes EB strips that are easy to work with. Very cost effective as well.
CRI is "only" minimum of 90 but plenty of red.
There is a 5600k version

Forgive me but what is a EB strip and will they need drivers et

 

[oreo54]

Above

Forgive me but what is a EB strip and will they need drivers et

Yea.. the above link is 40W strips for $17.17 each.. CRI 98 (typical)

Oh w is for wired.. saves from buying a circuit board for them.
and a 48V power supply matched to the number of strips you use.


The EB strips are said to not need heat sinks but I'd buy some aluminum strips at the least.. About $10 per strip.



There are "fixtures one can buy to put these strips in.

Oh these are 4ft (1120 mm) strips which don't exactly match your tank.

Sorry I needed to adjust my math..
.960mA test current at 40.6 v is 39W each

I'd recommend 700mA. So about .7 x 39.5(guess) = 27.65w

LDD-H Series Mean Well Step-Down Mode CC DC-DC LED Drivers

www.ledsupply.com

So say 4 strips. Drivers are about $8 each

I'll see about the smaller strips..
Point is you can stay well under $600


Only found 5000K in 1ft strips that you can buy in singles..
Can get the 5600k and 6500 in lots of 200

Loading…

www.digikey.com

$6.72 each.
280mm = 11 inches

You could still use 700mA drivers . 1 for every 2 strips wired in series. 48V power supply is still needed.

https://www.bridgelux.com/sites/default/files/resource_media/DS133%20Bridgelux%20EB%20Series%20Thrive%20Data%20Sheet%20081320%20Rev%20A.pdf

 

[oreo54]

I lost a big edit since it doesn't save if you edit but will save if you post.. so I'm posting
Point was you could "do" 8 1ft strips plus drivers plus power supply for (almost ) under $120

Sale Price: $31.75
PART #: LRS-200-48

LRS Mean Well Enclosed Switching Power Supplies

www.ledsupply.com

Loading…

www.digikey.com

4 drivers 700mA @ $8 .. 8 strips run 2 in series to 1 driver.
20.7 V(f) @ 700
41.4 x .7 = 29W per pair
4 pair is 115.9W
3wpg
31.75 + (8 x $6.72) + ( 4 x $8.96) = $121.35

98+ CRI 5000k and 145(ave l/w) x 115.9w = 18,805 lumens..

 

[BetteMidler]

I was looking for something similar & came across these Illumagic Pixels. Maybe the "Aquascaper"' versions?

It's really hard to find something that leaves out the red peaks.

Edit: Added link for a 3 puck 36" with mount: https://dalua.com/collections/bundl...led-bundle?variant=43415307321495#qvi_TdfPOxF

 

[oreo54]

6500k cob...
L2C5-FS001211E1900
1211 size cob
Mouser has some of the above COB's in stock.
These are true 6500k and >90 cri
I've used these on fw lights and have correspondence from lumileds regarding
the specs. This is, ironically, a specialty led to enhance the display of fish in a super market
Part of a series including " bread" and " red meat".
"FS" stands for fish..
Spectrum is arguably better than the 5000 or 5600k COB's.
CREE has some 6500k and 90 cri
I'm, right or wrong, not a cree fan.
Bridgelux as well but I need to find them.

The fresh fish COB's are probably the most "expensive" of the 6400k line @ $24.77 each for 40-ish watts.
LDD-1200HW
34.8v approx @ 1200mA
41.76w each .

Probably get away w/ 3 but at 1200mA
You will red need some decent heatsinks for passive cooling.
ps size 48v, 200 or more watts
LRS-200-48 $31.75


Here's the spectrum ( blue trace,of course )

Approx 4750 lumens/cob.
14,250 total for 3 cobs

Apparently the " new" driver is
NLDD-1200 HW

Loading…

www.mouser.com

$31.75 + ( 3 x $24.77) + ( 3 x $6.80 ) = $126.46

Decent heat sink can double the price though.


As a side note apparently Iwasaki made 2 ( at least) versions of the 6500k bulb.
1 was 6500k. The other aquarium "6500k" was really around 10 or 14000k. Forgot which. Anyways bluer less yellow that the " correct" 6500k.

 

[Doctorgori]

It's really hard to find something that leaves out the red peaks.

So actually what I’m looking for is something with an even red distribution in balance with the blue: basically a smooth spectral graph. Seems every high CRI LED I’ve found has this characteristic but I’m not sure the corollary is a direct one…

This is, ironically, a specialty led to enhance the display of fish in a super market

This intrigues me, but a universal issue I’m going to have regardless is CRI in air is one thing; I’m not sure how this plays out after 12” of water then viewing the subject tangent to the lighting through glass.

 

[Doctorgori]

I probably should better explain what I’m trying to accomplish and the questions I want to answer…
(I’m going to ramble and be all over the place so please bear with me)
So for some background.

• Pre Radium, Reef tanks started off being lit by white bulbs. I’m wondering how some of those hobbyist with MH bulbs handled algae issues.
• The sun is 5500K, corals evolved in this lighting filtered by water depth. Yet we light our tanks with bulbs designed to basically feed Zooxanthellae. This adjustment was driven in large part by studies on the symbiosis between corals and thier host algae….Emphasis: most (if not all) the studies were centered on spectral lighting needs of the symbiotic Zooxanthellae NOT the lighting needs of the animal itself. This is a important distinction

So why does this matter? Believe it or not, while we (as terrestrial animals) don’t eat sunlight, yet we still need it for biological processes (vitamins, et). But whether this is the case for aquatic animals or not is unclear to me and I have not been able to parse out info on this without sifting through volumes of zooxanthelle stuff….

I’d like to at least document coral growth using color temps under 10K or closer to natural sunlight

Secondarily. I want to see a corals true colors under high CRI lighting and as close as possible to full spectrum sunlight. I would like to document colors, growth et et ..

I’m gonna need advice and guidance
@oreo54 …I’m reasonable handy with a soldering iron and very good with DIY assembly..but NO clue on LEDs, drivers et …Anyhelp appreciated, assume I’m clueless (I won’t be insulted, I’m not sensitive)

 

[twentyleagues]

I had a few 6500k led flood lights in my saved cart at amazon looks like they are not available currently. I did have a pair that worked great on a planted tank that lasted about 3 years from those. I believe they were 150w. I didnt have a par meter at the time so no idea what output actually was. This had me looking this morning check out the Relassy store there is a "450w" 150w actual model shows a spectral graph but no cri or actual temp but came up with a 6500k search, graph looks about right. The t5 led replacement bulbs from the local grow shop last me about 18 months and I dont know how much par they actually deliver. Also they only come in 2' and 4'. Those are from sunlight supply. They sell a white and blue "grow" and one that is alot of red /orange "bloom". The grow is cooler than 6500k but with a mix of 2 grow to 1 bloom looks about right to my eye. Grows plants in and out of water well. Never tested par on these either guess I should, maybe tonight. These are nowhere near as bright as the flood lights were, but the plants seem to like them.

I know none of this is as scientific as others. So maybe less than as helpful as I was hoping.

 

[Doctorgori]

They sell a white and blue "grow" and one that is alot of red /orange "bloom". The grow is cooler than 6500k but with a mix of 2 grow to 1 bloom looks about right to my eye.

Yeah I’ve spent a lot of time on Amazon, the thing with these Sino-Amazon products is you can possibly have the same product branded under 10 names…only thing that’s changed is the dye they use for the plastic

Also seems everything labeled “Full Spectrum grow” seems to have a smooth spectral graph (if you find one) BUT the blue band is waaaaay too narrow and the red band disproportionately huge (of course, hence the “grow” designation)

Another possibility is those LED outdoor spotlights. Aluminum, IPV6, plenty of watts…..
Most are listed as “daylight” and come in 5000 -6500K but have no spectral data and I’m gonna need a decent blue band

 

[oreo54]

So actually what I’m looking for is something with an even red distribution in balance with the blue: basically a smooth spectral graph. Seems every high CRI LED I’ve found has this characteristic but I’m not sure the corollary is a direct one…


This intrigues me, but a universal issue I’m going to have regardless is CRI in air is one thing; I’m not sure how this plays out after 12” of water then viewing the subject tangent to the lighting through glass.

"A" reef 1/2 meter.. Grey behind it is "daylight".
Dashed blue line is 10m.

Luminous flux: 59,999 lm
Radiant flux: 247,591 mW
PPF: 1,136 umol/s
TCP: 6020 K
CRI: 94
λp: 482 nm
Color: #F7FFE0

Bridgelux COB 6500k..
Grey daylight
Red 1 meter

BXRE-65S2001-C-74

$6.42 for 17 watts.. (500mA)
630mAis test current , 1200mA max..
I'd suggest 700mA max.

There are violet based emitters that fill in the "blue band" better but THAT is hard to find in a form or density you can easily work with.
https://www.ledrise.eu/blog/innovative-sunlike-natural-spectrum-leds-by-seoul-semiconductor/


Hmm.. this is new..expensive but easy to work with.

LumiFlex3098+ Toshiba-SSC LED Strip Sunlike full spectrum CRI98 cold white 6500K 8990lm 24V 140 LEDs/m 5m reel (1706lm/m 19.2W/m)

SunLike™ TRI-R™ LED Technology from Toshiba-SSC and Seoul Semiconductor provides natural light with near-solar spectrum and high CRI value of 98. Flexible and easy to install over a length of 5m with self-adhesive back and ability to be cut every 50mm. High flux of up to 1706 lm per meter and...

www.ledrise.eu

 

[BetteMidler]

Have you looked at Migro grow lights? They use CRI 95

MIGRO Grow Light shop | LED Grow Lights | UVB grow light | PAR sensors

The MIGRO ARAY. The best LED grow lights on the market, high efficiency LED grow lights, modular LED grow lights, LED grow light strips, UVB grow lights, grow light meters, grow light PAR sensors, grow light quantum sensors and Grow Light controllers.

migrolight.com