Bridgelux EB Series Build

Nutria said:

I like EB strips more cause I can get a better coverage than Samsung strips. I am just worried I am missing something... Tent will be 1.6ft(deep)*2.3ft(wide)*2.9ft and I am thinking of setup made of:
HLG-120H-20B (10-20v, 6A)
12x 2ft(560mm) eb strips gen2 3500k
Dim down to ±100w
Probably too many strips but I want to drive them soft because flowers will grow close to the light fixture I suppose.
I am also thinking to add some 660nm and 730nm diodes since I am already using them and I like it.

I did never see your grow thread and I have to admit it is really cool how you did setup your grow!

Click to expand...

Too many strips isn‘t possible! I just did a panel with 18x 1ft strips (gen1) @30-60w

Good setup, you won't have too many strips. You might consider some vertical strips. I have one 560mm strip hanging by the wire in each corner.

Chip Green said:

I get nearly everything I build with from arrow....Ive had orders reach my doorstep in less than 24 hours. Order with confidence.

Click to expand...

Sweet

I only wish they had the 4 fters in stock

Free shipping is pricless to a guy past canada

How do you mount strips? screws only or with any thermal interface material?
I saw some of you don't even use an heatsink, probably it isn't needed.

Im going to use screws and thermal tape havent decided on my heatsinks yet.

I want real ones but they are spendy to ship here

Cold$moke said:

Im going to use screws and thermal tape havent decided on my heatsinks yet.

I want real ones but they are spendy to ship here

Click to expand...

Thermal tape would be easier to manage with I think

reading the thread about eb2 thermals it does seem I could be ok with a fan pointing at the strips and no aluminium profiles to mount the strips on. Like @Serva did. Atm I only have access to alu. square tubes or L shaped cause I would get them already cut at the length I need, I want a better clean job than what I did with my actual cob fixture lol. Using square profiles to attach strips on would be heavy and pricy, probably not necessary cause of the low current.

I used thermal paste (buy a large tube or tub) and screws.
If I was doing 20mm strips I'd buy slide-in LED PCB extrusions.

Its the one part of the build i want to cheap out on as an aluminum worker i know i got something lying around lol

But everyone seems to say that regular aluminum is fine since we usually runs fans

THose strips are from $1.50 to $5, so no big expense.

I do like clean pro looks though
They look nice

ANC said:

THose strips are from $1.50 to $5, so no big expense.

Click to expand...

as usual the problem is shipping price from china.
They are far more pricey here were I am

no man, it should be peanuts if anything. Their government subsidizes lots of shipping.

there are also units ex UK and USA on ebay

any link to some solid core wire from arrow? That site is a mess.

It would probably be easier to get some thermostat wire from a store rather than trying to find it on Arrow.

Let me understand, these wires are made of copper or aluminium?

2ft strips are 560mm exactly? am I right? Just to know if I can fit them in a 2ft (600mm) tent

yes there exactly 22"

@Serva May I ask you a better photo of your fixture? I am interested on how you secured strips

Nutria said:

@Serva May I ask you a better photo of your fixture? I am interested on how you secured strips

Click to expand...

I have done it diffrent ways... which one do you mean?

I have panels with a wooden frame and panels with alu frames (post #6 of my thread) and air contact. Both just use 2x self-tappers to mount the strips to the frame (left and right).
https://www.rollitup.org/t/bodhi-seeds.518143/page-1681#post-13655773
https://www.rollitup.org/t/bodhi-seeds.518143/page-1683#post-13657118

I used a really thin alu sheet, which was pretty flexible, and mounted the strips with thermal tape on the surface. On the other side of the sheet I mounted small c-channels crosswise (!), so it became a stiff board. https://www.rollitup.org/t/eb-strip-panel.954018/#post-13962519

For my first panel I used c-channels and self-tappers (post #4 of my thread).

From my experience the 1ft strips are always twisted and when you mount them with screws to a channel, they never have good contact. So thermal tape was way better in this case.

But mostly I like alu tubes as frame (post #37 of my thread), self-tappers (which are also hidden in the tubes), and air contact for the strips (50-100% nominal current). Tubes, because I like to hide my wiring. Tubes are easily re-used 1-2 times, when changing your initial design.

If you are looking for a really clean build, you will need either a sheet or some tubes.

https://www.rollitup.org/t/bodhi-seeds.518143/page-1723#post-13714478
I was able to replace these 2x75w fl tubes with 50w EB strips (12x 1ft), because the light spread was way better.

Since I want to drive my strips soft around 500mA I suppose it is not needed to use aluminium profiles as heatsinks.
Because of this I thought to only use x4 L-channels to make the frame. Screws to secure strips.

I love clean builds but using square tubes I would have to find longer screws and drill more holes for the wires but i would still have to keep wagos outside the tube. No?