Veg Light on the cheap.

Krytend

Krytend

Well-Known Member
Looking to build a veg light for a 2x2 thinking eb strips ran at 1000ma or 700ma. How many do you think I need? Also what's a good watts per square-foot?
I'm thinking a mix of 3k and 5k. Any help would be greatly appreciated.
 
I run the EBs at 700ma, they pull around 17w each with Meanwell drivers, so to get veg numbers for a 2x2 Id say use 4-5 of the 2 foot versions at 700ma.
Meanwell HLG60H-C700 has 100v to use, could run 4x 2ft EBs.
HLG80H-C700 could run 5x 2ft EBs.
 
I'm liking the price on the HLG60H-C700 but can I get away with running 17watts x4 ? Thanks for the info.
 
HLG-80 is only a few $ more and maxed out at 90w instead of 70w.
68w should be enough for the first few weeks but I would rather have a few watts more just for the case you need more.(bigger tent, flowering a motherplant)
If you take the b-version(HLG-80H-C700B) your light will be dimmable from 10 to 100% and if you can wait 1 or 2 weeks you could take 6 EB-Series, gen.2 strips with much better effiency for the same price.
(2ft. Gen.2 strips needs 19,5v@700mA, 13,65w, 175lm/w@3000k and 180lm/w@5000k)
 
Randomblame said:
HLG-80 is only a few $ more and maxed out at 90w instead of 70w.
68w should be enough for the first few weeks but I would rather have a few watts more just for the case you need more.(bigger tent, flowering a motherplant)
If you take the b-version(HLG-80H-C700B) your light will be dimmable from 10 to 100% and if you can wait 1 or 2 weeks you could take 6 EB-Series, gen.2 strips with much better effiency for the same price.
(2ft. Gen.2 strips needs 19,5v@700mA, 13,65w, 175lm/w@3000k and 180lm/w@5000k)
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Good idea I wasn't sure when the gen 2s were coming out. Where's a good place to order them from I'm in the state's?
 
I'm going to buy a HLG-80H-C700B now and wait for the gen 2s to come out. Thanks for the help guys!
 
ChefKimbo said:
@Randomblame Those specs for the new EB strips are gr8. How do you think they would do on an older MARS driver(86v max/650ma)?
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Should work just fine, mate!

You could use eight of the new 1' EB's(fit's better inside a mars housing) and connect them in a series-parallel connection(4s2p), which means each strip gets ~325mA and run with 176lm/w. 4 strips in series needs 78v which fits well with the exsiting driver. I would use only 3000 or 3500°k because it has enough blue for vegging and is best for flowering.


Krytend said:
Good idea I wasn't sure when the gen 2s were coming out. Where's a good place to order them from I'm in the state's?
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Digikey.com, link below is the 2' strip in 3000°k.
Some users who have already ordered got the 27/12/17 as the delivery date. When they receive them they will surely let us know..

https://www.digikey.com/products/en?keywords=BXEB-L0560Z-30E2000-C-B3


Krytend said:
I'm going to buy a HLG-80H-C700B now and wait for the gen 2s to come out. Thanks for the help guys!
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Good decision! That's the 1' strips in 3500°k

https://www.digikey.com/products/en?keywords=BXEB-L0280Z-35E1000-C-B3
 
ChefKimbo said:
@Randomblame Those specs for the new EB strips are gr8. How do you think they would do on an older MARS driver(86v max/650ma)?
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I know its not strips but you peaked my interest on this quiet holiday period so I got a a Growgreen 200 watt board and wired it in parallel with a cheapo chinee driver
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Sweet lol
This setup will squeeze few more lumens out hopefully :lol:
 
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and one ggboard should fit well in a Mars300w-reflector housing, I mean the green ones without lenses.They have two or three of this drivers inside, so one can use one for each channel. Each diode would get ~92-100mA with these drivers and each channel run with up to 60w. A ggboard driven at 120w would be realy efficient and delivers probably twice as much light as a Mars 300.
If I had not given away (three weeks after I got it, Lol!), I would rebuild it with boards.
 

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Moldy said:
You LED guys are bunch geniuses! Don't understand a bit of it but I enjoy watching the talent! If I was younger I'd get into it lol.
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Haha, it's realy not that hard to learn. My grandpa could do it and you would be surprised how many "old dogs" you meet here. If you use 24 or 48v strips for example(like Samsung F-Series) and 24 or 48v drivers everything else is really a breeze and can be done easily even by a less gifted craftsmen.
 
Randomblame said:
Haha, it's realy not that hard to learn. My grandpa could do it and you would be surprised how many "old dogs" you meet here. If you use 24 or 48v strips for example(like Samsung F-Series) and 24 or 48v drivers everything else is really a breeze and can be done easily even by a less gifted craftsmen.
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My grandpas would be absolutely useless....
They couldn't get out of their coffins, the lazy bastards, just lying around
Lol
 
Randomblame said:
Should work just fine, mate!

You could use eight of the new 1' EB's(fit's better inside a mars housing) and connect them in a series-parallel connection(4s2p), which means each strip gets ~325mA and run with 176lm/w. 4 strips in series needs 78v which fits well with the exsiting driver. I would use only 3000 or 3500°k because it has enough blue for vegging and is best for flowering.
Click to expand...
Sound good to me. Im actually getting the drivers from my old Mars 600 and would like to use the housing for strips. Will be in a 2x1.5 ft space where height is a problem. Plant height can be no more than 2 ft in veg cab so im hoping the mars conversion will give more headroom and bushier plants. How many strips for the 600 you think. Any possible hotspot issues with such tight spaces?
 
Well after looking around a bit, i'll go with 6 2' EB Gen 2 led strips for the Mars 600 housing. The 600 comes with 4 drivers. 2 of those drivers controlone 12v fan each. I could slip 3 led strips on each driver and run the fan aswell. 6 led strips at 700ma gives 82 watts in that Mars housing, sounds respectable for a 4 sq ft space. Not bad considering i can upgrade to a single meanwell driver and still add more strips in the future.
 
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