whytewidow
Well-Known Member
I'll send you the pdf file in dm. It gives most of the info for all the Samsung strips. Can you read a pdf file?
2' or 4' Strips for 2x4 Grow Space?
whytewidow
Well-Known Member
The 8670 is pretty close. That's per strip. 7 strips that's over 60k and change. I'm trying to figure out how you got only 26k? Not saying your wrong. But my strips at typ are 176/LW @ 25.8vdc. The f564b are dual row. With voltage of 48vdc. 51.8w I believe. 176 × 51.8w=9116.8 then 9116.8 x7 strips= 63,817.6 and meanwell drivers are underrated.
SlownLow86
Well-Known Member
You're exactly right. I had multiplied the 8670 by 3 because I was using 3 strips per driver. I should have multiplied it by 6 for the total 2x4 grow area for a total of 52K. So in reality, the Sammys are putting out almost double the Bridges with significantly less strips. That makes a lot more sense now. Thank you for correcting me.
As far as the PDF goes, send it! I'd love to nerd out over the specs. haha. Thanks again!
whytewidow
Well-Known Member
No problem man. I seen your numbers. And I was like wait a min. Those are what I'm using. And I knew my numbers where higher than that. I thought maybe I made a mistake and ordered the wrong strips or something.
You got it. Coming in dm man.
Chip Green
Well-Known Member
If you planned on running the Bridgelux EBs at 700ma, you can completely ignore heatsinking of any sort...trust me, I have racks, and racks of them with NADA thermal management. Been running for many, many, many moons......I get less than 1% total voltage drop from cold start to full operating temp...
The benefit of the Samsungs, is they can handle the higher currents with proper heatsinking, and put out WAY more light, therefor needing less strips...
I did run a full flower cycle with the EBs at 1400ma- 6x 560mm 3500k EB Gen1 on an HLG185C1400, with the only cooling mechanism being a 2x2 sheet of aluminum roll flashing....That one had around 3% voltage loss....
Sammys, BXEB, whatever you choose, no way you'll be disappointed.
I dunno where youre at, but if shipping dosent jack the price up too high, Heatsink USA (MI) has a .601" profile that lays PERFECTLY on the Samsung F series single row, at the low low price of $1.08/ft....
The benefit of the Samsungs, is they can handle the higher currents with proper heatsinking, and put out WAY more light, therefor needing less strips...
I did run a full flower cycle with the EBs at 1400ma- 6x 560mm 3500k EB Gen1 on an HLG185C1400, with the only cooling mechanism being a 2x2 sheet of aluminum roll flashing....That one had around 3% voltage loss....
Sammys, BXEB, whatever you choose, no way you'll be disappointed.
I dunno where youre at, but if shipping dosent jack the price up too high, Heatsink USA (MI) has a .601" profile that lays PERFECTLY on the Samsung F series single row, at the low low price of $1.08/ft....
SlownLow86
Well-Known Member
Thats EXACTLY what I was looking at doing except with the gen 2's and two of those setups for a 2x4 area. Awesome to know that it's been field tested already. Thanks!
Chip Green
Well-Known Member
Plan on some sort of dimming if your putting 400+ W over 8 sq ft...….
I just finished a run with 425 W of EBs over one monster in a 25 gal of soil, probably had more like a 3.5 x 4 canopy, that yielded 22 zippers dried and trimmed....and I'm still a minor leaguer, experience wise...Single A.
I just finished a run with 425 W of EBs over one monster in a 25 gal of soil, probably had more like a 3.5 x 4 canopy, that yielded 22 zippers dried and trimmed....and I'm still a minor leaguer, experience wise...Single A.
oldbeancounter
Well-Known Member
What is your driver/layout/K's on light you have?
Chip Green
Well-Known Member
Its 4 feet long, 22x 560mm EB gen1 strips, mixture of 3000k and 3500k, all held together with 2"x2" lengths of plain old lumber, sorta looks like a ladder....
There are two series wired circuits, of 11 strips each, run at 700ma, with MW ELG 240H-C700 b drivers.
When run at 120v input the ELG 240s push out around 220w each.
Kinda a "Frankenstein" build, parts from other projects all put together.