Number of strips/leds/watts required for a 3.5x7 growroom

[PAIN]

Hello everyone I'm pretty new to the diy led strip scene and I'm in desperate need of advice.
As the title says I have a 3.5'x7' grow room im planning to do a light fixture with alluminium frame and lm301h led strips 72 LEDs each that I found on eBay, the strips are about 2,8' long so they are pretty close to the width of the room.

Link: https://www.ebay.de/itm/303554229991

For what I understand they will run at about 25w with a 700A driver and at 35w with a 1050A, thinking of going with a meanwell one, on the item description they state that the meanwell HLG-320H-C700 runs from 7 to 12 of these strips at 23.5w so my questions are if I use the HLG-320H-C1050 will these strips run at 35w and how many would be sutible for my space?

Thanks in advance for any inputs

[Kaduflyer]

I think I would stick to bridgelux or Samsung h influx (lm301b) strips
Via digikey or future electronics or mouser.
But need some planning to best fit your space.

The series drivers give you the watts so depends on how much voltage you have.
Eg. I have a 240 watt driver c1400 and has 135 volts across the strips so get 1.78 amps at max.
If had more volts the current will come down.
Saying that a parallel driver would be alot better especially if running higher voltage as a risk of shorting

I would aim at 30-35 watts per square foot the area you want to cover
That's how I see it
hope it helps

[PAIN]

Thanks for the reply and if it's not pushing my luck could you please go here https://www.digikey.pt/ and link me to the correct strips, they have so many that I feel kinda lost

I think I've identified them, they don't mention the led type but the strips come in 56 and 28 cm configuration some with double row of LEDs in the same lenghts.

https://www.digikey.pt/product-detail/e ... ND/8536566 are these the ones with lm301b?

Would these at 4k temperature be ok for a full grow or is it really necessary to add deep reds uva and all that stuff?

Thx so much for the help btw

[Kaduflyer]

bridgelux eb series gen 2 or gen3

https://www.digikey.pt/products/en/opto ... b%20series
need more bridgelux strips but a lot cheaper and run at a lower current so less heat

Samsung h influx

https://www.digikey.pt/products/en?keyw ... h%20influx
more money but come on aluminium backing and can be run hotter so need less strips.
they have lm301 leds but nothing in it

[PAIN]

Thx so much for your help, one last thing if I was to run 24 of these
https://www.digikey.pt/product-detail/e ... =328672720

In this config but closer to each other obviously how would you wire it and with What driver/s?
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[Kaduflyer]

I think this should work
https://www.digikey.pt/product-detail/e ... D/10659859
The data sheet says it goes to 58volts
I would double check with someone else though

3 in series on 8 parrallel arms
Driver plus to strip 1
(plus in, neg out) on each 3 strip arm then neg back to neg of driver.


Or 12 parrallel arms of 2 could be done with a hlg-320h-42a

I think ?

[ganjah]

Welcome to the forum @PAIN

It looks like you've been steered in the right direction by @Kaduflyer . The Bridgelux EB3 Slim are your best bet - cheap and easily available. If your room is going to be used only for flowering, go with the 3000k version of those strips. If you will also be vegging in the room, grab 3500k strips. 4000k is just a little too much blue/green for flowering.

Making a fixture that's 6ft long is going to be tough to position, raise and lower, and might have some sag in the middle unless your frame is very rigid. Have you considered using the 1ft EB3 Slim 3000k strips to make 2 separate 3x3 fixtures? I don't know how you'd wire it, but from here it seems like a good option, albeit slightly more expensive.

One last thing - the EB3 Slim strips have very fragile connectors, so be extra gentle when you're wiring them.

[PAIN]

Thanks to all of you for the priceless help, I'll be mostly flowering maybe one or two weeks of veg just to settle them in, I'll go with the 3000k then.
Once again thank you all for steering me in the right direction.

I'll keep you updated once the build starts.

Edit: I've decided to bump the count to 30 strips, struggling with drivers again, I don't mind using 2.

The strips are 19.1v 700ma

So I need a constant current 700ma driver and the add the voltages of the number of strips is that it?

Would this guy power 15? Or am I completely off lmao?

https://www.digikey.pt/product-detail/e ... ND/7704018

[Kaduflyer]

That driver would work but wont be the best as you would be having 286 volts, likely to short
Which is too much I wouldn't go above 180volts if connecting in series.
A hlg240-36 (a or ab) or hlg240-20 are better depending how you wire them.
Either 2 in series on each parrallel arm or all in parrallel aiming at 16 strips or 18 strips.
Having nine 4 footer strips might be better value depending on size of light you want on the hlg240-36

[PAIN]

Is this the correct one?
https://www.digikey.pt/product-detail/e ... =328855057

So I'd use 2 of these and each would power 15 strips in separate like if it was 2 separate fixtures on the same frame right? I see knobs in it is it dimmable?

Configuration of the 30 strips.

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Now series or parallel?