Bridgelux EB Series Build

brahbbyB · Dec 12, 2016

Well my order shipped today from Digikey, looks like they only have the 4000K+ in stock currently.

http://www.digikey.com/product-search/en?FV=ffecd831

Still have not heard back from Bridgelux on a 3500k Spectrum Graph. Looks like these only got released at the end of October, which explains the lack of stock anywhere.

Hopefully my LDD's/PSU/PCB's will be here by next week, I will try to hook up a thermocouple to a 1A board to see how hot its getting.

BuddyColas · Dec 12, 2016

brahbbyB said:
I think I am going to move forward with these EB series, but in the 40" length and go with larger 4' wide tent. I am looking at about 9 of the 40" modules putting me around ~407W @ 1000ma.

To drive them I was looking to use a bunch of the Mean Well LDD-1000H mounted on some 5UP PCB's.
http://www.ebay.com/itm/Ldd-1000H-5-channels-LED-driver-on-PCB-Board-/311516001741

To power 2x of these PCB's, I'll see how cheap of a 500W+ 36/48V AC/DC Power Supply I can get. I've got an Arduino hanging around that I can use for the PWM input.

So I believe they are 44" long...just saying.

brahbbyB · Dec 21, 2016

BuddyColas said:
So I believe they are 44" long...just saying.

These are definitely 44" long, not sure where I got 1120mm = 40" :eyesmoke:

. I ended up settling on a 48" x 30" tent

brahbbyB · Dec 21, 2016

Parts came in over the last week, finally got a chance to wire them up tonight. Taking a look at them, they appear to be a single sided PCB. I am a little dissapointed they do not have any thermal vias or backside copper, but I will have to see how well they dissipate heat:

brahbbyB · Dec 21, 2016

Hooked 5 of them up to a Coralux 5up PCB w/ 5xMeanwell LDD-1000h drivers. Powering this with a 480w 48V 10A PSU.

This board requires a PWM controller in order to start due to having pulldown resisters. I have an Arduino Uno driving all 5 pins hooked up to potentiometer.
Running @ 1000ma the initial voltage was 45.5V on the output of each board. After running them for about 30 minutes they dropped to 45.1V due to temperature rising I can assume.

No temperature reading, but looking at the datasheet I can only assume they are running > 50C @ 45.1V. I have piece of 48"x24" aluminum sheet on order, I will try to get some readings later this week on temp difference between Al Sheet/Wood Counter/Air.

Also Bridgelux still never got back to me on the 3500k spectrum chart, so these are all 4000k boards.

BuddyColas · Dec 21, 2016

brahbbyB said:
Hooked 5 of them up to a Coralux 5up PCB w/ 5xMeanwell LDD-1000h drivers. Powering this with a 480w 48V 10A PSU.

View attachment 3858838

This board requires a PWM controller in order to start due to having pulldown resisters. I have an Arduino Uno driving all 5 pins hooked up to potentiometer.
Running @ 1000ma the initial voltage was 45.5V on the output of each board. After running them for about 30 minutes they dropped to 45.1V due to temperature rising I can assume.

View attachment 3858845

No temperature reading, but looking at the datasheet I can only assume they are running > 50C @ 45.1V. I have piece of 48"x24" aluminum sheet on order, I will try to get some readings later this week on temp difference between Al Sheet/Wood Counter/Air.

Also Bridgelux still never got back to me on the 3500k spectrum chart, so these are all 4000k boards.

Awesome. Exactly the strips I am interesting in (44" 4K).

So that’s about 45 watts a strip just laying on the kitchen table. And .9% voltage sag after 30 min at 1 amp (from 45.5 to 45.1v)…that’s pretty good with no heatsink! How do the strips feel in the palm of your hand after 30 min. at 1 amp?

Ryante55 · Dec 21, 2016

Have you seen the Samsung h series strips? I wonder how they compare to these

welight · Dec 22, 2016

brahbbyB said:
Parts came in over the last week, finally got a chance to wire them up tonight. Taking a look at them, they appear to be a single sided PCB. I am a little dissapointed they do not have any thermal vias or backside copper, but I will have to see how well they dissipate heat:
View attachment 3858823

View attachment 3858825

Bridgelux say they dont require heatsinking so it would have been counter to that narrative to add thermal vias, I dont know of any mid power FR4 PCB that use thermal vias, given that it would be of no use to have backside copper, I would certainly mount them on alu strip however as insurance, especially if your going to side by side them
Cheers
Mark

brahbbyB · Dec 22, 2016

Ryante55 said:
Have you seen the Samsung h series strips? I wonder how they compare to these

I havn't seen an H-Series, but I did look into the Samsung 4-ft M-Series:
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_M-series_4ft_Rev.0.3.pdf
At the time they were more expensive on Digikey, but looks like you can get the for about a dollar cheaper on arrow vs. the Bridgelux EB's. The datasheet doesn't specify running them at higher amperage and says a max lumens of 5900 , but not sure if this is just referring to their individual LED binning at the tested 1400ma.

Ryante55 · Dec 22, 2016

brahbbyB said:
I havn't seen an H-Series, but I did look into the Samsung 4-ft M-Series:
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_M-series_4ft_Rev.0.3.pdf
At the time they were more expensive on Digikey, but looks like you can get the for about a dollar cheaper on arrow vs. the Bridgelux EB's. The datasheet doesn't specify running them at higher amperage and says a max lumens of 5900 , but not sure if this is just referring to their individual LED binning at the tested 1400ma.

The h series uses newer diodes they use the 561c same as the quantum board

brahbbyB · Dec 22, 2016

Ryante55 said:
The h series uses newer diodes they use the 561c same as the quantum board

Just looking them up now, definitely more efficient (187lm/W vs. 158 lm/w) but close to double the cost ($27.58 vs. $14.95).
http://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SI-B8T221B2HUS/1510-1578-ND/6149743
I settled on the EB series for bang/buck ratio for around ~$300-350 including drivers. The samsungs will definitely payoff in the long term operating costs, but being a rookie here, I am not looking extremely long term.

Ryante55 · Dec 22, 2016

brahbbyB said:
Just looking them up now, definitely more efficient (187lm/W vs. 158 lm/w) but close to double the cost ($27.58 vs. $14.95).
http://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SI-B8T221B2HUS/1510-1578-ND/6149743
I settled on the EB series for bang/buck ratio for around ~$300-350 including drivers. The samsungs will definitely payoff in the long term operating costs, but being a rookie here, I am not looking extremely long term.

It's 27 for the 4 foot is the bridgelux 4 feet?

brahbbyB · Dec 22, 2016

As for some more testing, I was able to run another test this afternoon for ~1 Hour and got the following:

5 x 4000k EB Strip 4000k running at 100%
Voltage: 44.8V-44.9V on all 5 LDD-1000H
Temperature: Directly under LED on bottomside of board ~60C (measured with infared thermometer): around 54C on topside of PCB between LED's
Wattage at wall: Settled at 263W (267W when fan ran on 48V PSU)

brahbbyB · Dec 22, 2016

Ryante55 said:
It's 27 for the 4 foot is the bridgelux 4 feet?

Yeah 44" (1120mm)

PicklesRus · Dec 25, 2016

Ryante55 said:
It's 27 for the 4 foot is the bridgelux 4 feet?

The Bridgelux are at the top of the table - prices are in CAD from digikey

muleface · Dec 25, 2016

brahbbyB said:
Hooked 5 of them up to a Coralux 5up PCB w/ 5xMeanwell LDD-1000h drivers. Powering this with a 480w 48V 10A PSU.

View attachment 3858838

This board requires a PWM controller in order to start due to having pulldown resisters. I have an Arduino Uno driving all 5 pins hooked up to potentiometer.
Running @ 1000ma the initial voltage was 45.5V on the output of each board. After running them for about 30 minutes they dropped to 45.1V due to temperature rising I can assume.

View attachment 3858845

No temperature reading, but looking at the datasheet I can only assume they are running > 50C @ 45.1V. I have piece of 48"x24" aluminum sheet on order, I will try to get some readings later this week on temp difference between Al Sheet/Wood Counter/Air.

Also Bridgelux still never got back to me on the 3500k spectrum chart, so these are all 4000k boards.

Great setup! love it!

PicklesRus · Dec 25, 2016

brahbbyB said:
I havn't seen an H-Series, but I did look into the Samsung 4-ft M-Series:
http://www.samsung.com/global/business/business-images/led/file/product/lighting/201604/Data_Sheet_M-series_4ft_Rev.0.3.pdf
At the time they were more expensive on Digikey, but looks like you can get the for about a dollar cheaper on arrow vs. the Bridgelux EB's. The datasheet doesn't specify running them at higher amperage and says a max lumens of 5900 , but not sure if this is just referring to their individual LED binning at the tested 1400ma.

Looks like you're right - the price on arrow is a lot better for those and that puts the samsungs at the top of the table if we are looking at most watts per $ of upfront cost.

PicklesRus · Dec 25, 2016

Here they are

PicklesRus · Dec 26, 2016

Ryante55 said:
The h series uses newer diodes they use the 561c same as the quantum board

I didn't notice you mentioned H series -

Here's the comparison between
- Samsung M series B
- Samsung M series C
- Bridgelux EB Series
- Samsung H Series

currently the only place I can find the H series for sale is digikey and the price puts them the most expensive upfront. The table is sorted by cheapest cost per lumen.

(All prices are in Canadian dollars)

Here are just the three Samsung and the Bridgelux @ 4000k

Ryante55 · Dec 26, 2016

PicklesRus said:
I didn't notice you mentioned H series -

Here's the comparison between
- Samsung M series B
- Samsung M series C
- Bridgelux EB Series
- Samsung H Series

currently the only place I can find the H series for sale is digikey and the price puts them the most expensive upfront. The table is sorted by cheapest cost per lumen.

(All prices are in Canadian dollars)
View attachment 3861403

Here are just the three Samsung and the Bridgelux @ 4000k
View attachment 3861404

I didn't realize the Samsung is half the volts would that help cut down on driver cost? Also do you know if they are on the same kind of board I wonder what cooling cost would be per light. I may order some of those bridgelux for a micro grow

Bridgelux EB Series Build

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