custom led puck foolishness :/ - The Planted Tank Forum
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post #1 of 24 (permalink) Old 07-22-2019, 04:25 PM Thread Starter
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custom led puck foolishness :/

Not sure if I will actually do this but investigating cost.
This is probably silly but still waiting to hear back what diodes they offer exactly and how much it costs to customize but thinking about this (I suppose with the 90 degree lenses) https://www.aliexpress.com/item/32890960692.html with
4x ~8k whites @ 1200-1500ma
4x ~3k whites @ 1200-1500ma
4x cyan @ 700 ma? (not exactly sure wtf the details are on epileds cyans... do they even have data sheets?!)
2x red 1x deep red 1 390nm (or just 3 red I dunno exactly what my diode options are just yet waiting for them to get back to me...) @ 700 ma?
2x blue 1x royal blue 2x 420 nm @ 700? (ch 5 has 5 slots? could swap with one of the whites and use less violet?)

this is just a guestimation of diodes with white/cyan channels @ roughly 100% and blue/red @ 50% I don't have any real data on the epileds... I don't think there's any data sheets on their website.
suggestions? :O

* MIXING LIST
----------------------------------------
Cree XP-G CoolWhite (5000-10000K) [120] x12
Cree XP-G WarmWhite (2600-3700K) [120] x12
Cree XP-E RoyalBlue (450-465nm) [120] x1
Cree XP-E Blue (465-485nm) [120] x2
Cree XP-E Red (620-630nm) [120] x2
Cree XR Cyan (500-510nm) [120] x8
OSRAM OSLON-SSL HyperRed (644-666nm) [120] x1
SiBDI S35 UV (390-400nm) (U50) [120] x1
SiBDI S35 UV (410-420nm) (U70) [120] x2
----------------------------------------

* SIMULATION DATA
----------------------------------------
Luminous flux : 3,572 lm
Radiant flux : 13,684 mW
PPF : 59.4 umol/s
TCP : 6290 K
CRI : 98
λp : 452 nm
Color : #FFDAE1
----------------------------------------

* PERFORMANCE @ 30cm
----------------------------------------
Irradiance : 16.1 W/m/s
Illuminance : 4,211 lx
PPFD : 70.1 umol/m/s
----------------------------------------
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post #2 of 24 (permalink) Old 07-22-2019, 04:47 PM
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Just a friendly reminder.. whatever the calc says be aware that that much cyan is fairly visible to the human eye..
Some like it, some don't..

custom reefbreeders we designed. Initially heavy in cyan but they eventually swapped some out (fairly easy DIY w/ these)
https://www.plantedtank.net/forums/1...e-dutch-2.html

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post #3 of 24 (permalink) Old 07-22-2019, 06:56 PM Thread Starter
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probably would get more than 1 if I go through with this, maybe 2 with 4x cyan and 2 with 2 cyan 2 green or 3 cyan 1 green? ... though I personally haven't had a problem with my lights that are heavier on cyan so far...
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post #4 of 24 (permalink) Old 07-22-2019, 11:42 PM
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custom led puck foolishness :/

Im working on putting in led strips in my hood and removing fluorescent tubes...in addition to 6000k and 3500k strips I have an rgb strip coming in and a controller so I can vary the colors individually and essentially make it whatever shade or brightness I want (well, up to the max available on the strips). Planning to use rgb strip for moonlighting and warm white to fade in/out for sunrise and sunset. Ill post a journal once I get started.

Also Im getting a lux meter so I can see what the actual brightness is...leds on Ali Express or other cheap leds are very often not even close to whatever specs they claim to have and are usually not the brands they claim to be. Not that they are bad or unsuitable, but you really dont know for certain what you are actually getting.


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post #5 of 24 (permalink) Old 07-23-2019, 04:54 PM Thread Starter
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Not really all that worried about this vendor potentially ripping me off for like 30$ worth of diodes... if it happens oh well. Especially if it's like knockoffs of epileds, I don't even know if I would know at all.

I want a spectrometer but I'm too cheap :/ using a seneye reef still.

My RGB+CCT strips with a TC421 work okay but I don't know that I'd want to try to use them on any deep tanks, would require too many rows. 60+watts of strips generally covers a relatively large surface area which would make more sense if I had a hood I was working with but I don't.
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post #6 of 24 (permalink) Old 07-23-2019, 08:35 PM
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custom led puck foolishness :/

My thoughts as well...for the cost Im willing to take the chance and make it work rather then invest hundreds of dollars which is what it would cost to get from a known supplier. Sure brightness, spectrum and quality control may be a bit off but wont matter a huge amount. The main claim that seems to be exaggerated is the brightness, which Im making up for by buying about 5x what I should actually need.


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post #7 of 24 (permalink) Old 07-25-2019, 05:36 PM Thread Starter
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Apparently the customization costs nothing extra... just time as we basically get one set of messages a day to each other since they're on the other side of the world. So I guess I'll go ahead and do it maybe put 2 on one of these https://www.rapidled.com/6-x-12-prem...and-enclosure/ since they're on sale? OR hah @Maryland Guppy offered me some heatsink material for free...
Maryland Guppy likes this.
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post #8 of 24 (permalink) Old 07-25-2019, 10:06 PM
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I love those enclosures, just grabbed one. I've got a couple of the 6x20 from them and love them.


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post #9 of 24 (permalink) Old 07-25-2019, 10:14 PM
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Quote:
Originally Posted by Lingwendil View Post
I love those enclosures, just grabbed one. I've got a couple of the 6x20 from them and love them.

They need a slight re-design.. LDD-H driver/boards won't fit inside...or so I have been told..

Other than that they are nice..

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post #10 of 24 (permalink) Old 07-25-2019, 10:35 PM Thread Starter
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Yeah I wasn't able to fit LDD board inside before had to do an external box but oh well.
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post #11 of 24 (permalink) Old 07-26-2019, 08:32 PM
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That's why I designed the LDD-L PCBs I made


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post #12 of 24 (permalink) Old 07-26-2019, 08:54 PM
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Quote:
Originally Posted by Lingwendil View Post
That's why I designed the LDD-L PCBs I made
Yep..and thanks for that..
BTW someone desolder the LDD-H socket and hard soldered them to "a" board says they now fit..
Not sure how they dealt w/ the backside contacting the heat sink though..

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post #13 of 24 (permalink) Old 08-09-2019, 05:30 PM Thread Starter
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So they are in the mail... somewhere on a boat probably... but I'm just going to try their ldd boards which were through hole and if it will fit I'm sure I can figure something out to keep the backside from connecting to the heatsink. Sadly the rapidled site only listed black anodized on the site at the time but then they only actually had the silver in stock.
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post #14 of 24 (permalink) Old 08-09-2019, 05:48 PM
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Believe silver is also anodized though..
Anodizing increases the micro surface area (surface is "bumpier" )..thus better heat transfer.

Thin spray of lacquer is oddly almost as good though..IF the heat sink isn't anodized..

minimal heat transfer loss over anodizing. Increase heat transfer over raw heat sink.
Quote:
By painting or anodizing, the thermal performance
improved for each of the tested heat sinks. The aluminum foam heat sink, the finned heat sink and
the aluminum block, respectively, dissipated on average 17%, 31% and 44% more heat after they were
painted or anodized.
https://www.mdpi.com/1996-1944/8/10/5340/pdf

why the hp heatsink has covered with black paint?? | TabletPCReview.com - Tablet PC Reviews, Discussion and News
post 5

Really only important w/ passive cooling.

https://www.gabrian.com/anodized-alu...-need-to-know/

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Last edited by jeffkrol; 08-09-2019 at 05:56 PM. Reason: edit
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post #15 of 24 (permalink) Old 08-09-2019, 05:54 PM Thread Starter
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Yeah it's probably a non issue with the fan, I do prefer the black visually but it doesn't really matter.

This is what I ordered for now just trying 2 out in 1 12" heatsink hopefully with the ldds in the middle.
ch1: 4x XPG2 8000k
ch2 4x Cree XPG2 3000K
ch3: 3x Epileds 495 nm, 1x Cree XPE Green 525-530nm
ch4: 2 Cree XPE red, 1 Epileds 660 nm deep red, 1 Epileds 395nm
ch5: 1 Cree XTE royal blue, 2 Cree XPE blue, 2 Epileds UV 420 nm

and they claimed it would be~
Channel 1: 12V 350ma-1.5A,
Channel 2: 12V 350ma-1.5A,
Channel 3: 12V 350ma-600ma,
Channel 4: 9-10V 350ma-600ma,
Channel 5: 16-17V 350ma-600ma

probably gonna do 1.2A 1.2A 600ma 350 ma 350 ma ?
which would be rougly 45W (x2)?
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