Chip Green
Well-Known Member
Had I not stumbled into a bunch of floro fixtures for dirt cheap I'm using as hoods for my strips, Id be going right for these baking sheets, without a doubt.....
Bridgelux EB Series Build
- Thread starter brahbbyB
- Start date
PicklesRus
Well-Known Member
36 strips 216$
2 hlg-120h-c700 $120
2 baking sheets 34$
$370 = 43380lm @ 156lm/w
CDN prices
For a 2x4
CookiesheetCOBKiller
PicklesRus
Well-Known Member
haha we should each build one and start a thread called cookiesheet cob killers
We can post all our pics and get stickers made haha
Pretend we are all right serious about the cookiesheet revolution
We can post all our pics and get stickers made haha
Pretend we are all right serious about the cookiesheet revolution
Danielson999
Well-Known Member
The Cookie Cutter Build. Come bake with us. Let's make some dough together!
Come and join the cookiesheet revolution.
Anyway, maybe I'd mix a few 4000k in with 3000k to balance things out a bit. Not sure how soon I will start building but something is in order for this summer.
BuddyColas
Well-Known Member
Pictures?
graying.geek
Well-Known Member
So, after copious hours spent researching options, then getting a surprise tax refund, I decided to invest in a DIY LED strip grow light. Ordered 8 eb series 44” strips from Digikey, 2 HLC-185C-H1050A drivers from Arrow, a roll of double-sided heat resistant tape from Amazon, 8 4-ft lengths of angle Aluminum from onlinemetals, and the last pieces arrived today.
Problem is I was caught by surprise by the 2 sets of +/- terminials on the light strips, and am suffering a brain fart as to how to wire them in series. I guess my confusion stems from not knowing how the terminals are connected or not, and I'm not excited about the prospect of sending $300 up in smoke. Here's a diagram with a driver and 3 strips. Can one of you generous souls shed some light on this for the noob by filling in on the partial diagram how the various +/- terminals are connected for a series circuit?
Problem is I was caught by surprise by the 2 sets of +/- terminials on the light strips, and am suffering a brain fart as to how to wire them in series. I guess my confusion stems from not knowing how the terminals are connected or not, and I'm not excited about the prospect of sending $300 up in smoke. Here's a diagram with a driver and 3 strips. Can one of you generous souls shed some light on this for the noob by filling in on the partial diagram how the various +/- terminals are connected for a series circuit?
RandomHero8913
Well-Known Member
They are connected so you can use any side you want. If you put the first positive wire on top you could wire negative to positive on the top or bottom it doesn't matter.
luv2grow
Well-Known Member
So I kinda fell into using strips inadvertently a few months ago. I have a $50 slyvina shop light i got from home depot a few years back. Ended up throwing it in a 2.5 x 2.5 tent. This light has 2 pcb strips, each strip has two runs of offset diodes. I think there are 154 diodes in total. Anyway the point here is why are you guys running single led strips when there are doubles out there? Cost? Or availability? great thread and I'm stoked to have read it. Was just curious.
Danielson999
Well-Known Member
Can you link any double row strips that are comparable? I would go look but it's so much easier if someone knows where they are.
goodro wilson
Well-Known Member
Wired up my strips and am really happy with them I think they will go in my mother /clone cab
Have plenty of light everywhere else but the strips are so cool I'll prolly make more for a buddy or to use as side lighting
Have plenty of light everywhere else but the strips are so cool I'll prolly make more for a buddy or to use as side lighting
luv2grow
Well-Known Member
Let me see if I can get a tag shot of the fixture for you guys. It's lights off at the moment in the flower tent where this is being tested. I'm only asking because this light is at least 3 years old. So with that thinking you would assume the tech is around.
Attachments
luv2grow
Well-Known Member
https://www.digikey.com/products/en?mpart=JDHT-LMP06-E5435-90&v=1503
This is the first one I've found. As for comparable. that's up to who ever is building it.
This is the first one I've found. As for comparable. that's up to who ever is building it.
haze010
Well-Known Member
Not as good when you look at the details. At 350ma its 143lm/w and its max current is 700ma. The quality of the diodes is far more important than if its a single strip or a double strip. What makes a strip good or mediocre is what diodes are on the strip and the eb strips and the samsung strips are the best there is right now. Samsungs slightly better but quite a bit more expensive. Plus these are major manufacturers with stellar reputations, ask anyone who has ever bought a blurple if that matters...
Danielson999
Well-Known Member
The first thing I notice is that it's not as efficient, it's about 4 times the price of an equal EB strip and the diodes are too close together imo. The whole point of spreading them out properly is to get the best coverage you can. If you're going to start grouping them closely you might as well just run citi 1212's or other cheap cobs.
luv2grow
Well-Known Member
did you look at the next series of them, or just the linked ones? I'm not a led shopper at all lol. First time really,
and I'm not here to cause any probs. Was just curious as to if there was a set reasoning to using the single strips. like higher power or better heat management or something. The Price point is way better for sure from the one product line I quickly found.
and I'm not here to cause any probs. Was just curious as to if there was a set reasoning to using the single strips. like higher power or better heat management or something. The Price point is way better for sure from the one product line I quickly found.
luv2grow
Well-Known Member
Thanks! just what I was asking.
haze010
Well-Known Member
No worries, it took me a long time before i started to understand it myself and i still only get the basics. When comparing in the future you need to look at the current the test is, and the lm/watt. That will give you a general idea of how good the led is. The softer a LED is run, the more effecient it should be. The eb strips are around 160lm/watt at 700ma and a max current of 1400ma. The one you linked is only 149lm/watt at half the current, and its max current is 700ma so not even close.
Thats not even considering spectrums and stuff which is way more balls deep than i even understand, haha.
BuddyColas
Well-Known Member
If you want to go from seed to weed with one light...then use 4 strips a foot for 8 strips. That would put you in mid 700s for ppfd in a 2x2 (plenty in my opinion). I'm assuming you're running 700ma. And you can run them close to the canopy.
*your results may vary
Abiqua
Well-Known Member
Not too burst your bubble either, but then, we need to find the QER which is what the diode will emit as 100% efficiency/watt and compare that to the figure you are receiving from your amperage at running....Then, you need the umol/ joule to multiply against the ration of the Efficiency/ QER to get the PPF.....then we can start comparing output....You cannot compare Lumens / watts, especially across different Kelvin temps....People get lazy, use it as an easy guideline and people who don't know how it works, now assume a different meaning....
In Recap
Lumens alone is not a good figure for comparison, alone, but PPF is. Photosynthetic Photon Flux.
