Hey guys!
I have an old spectrum king that I want to put to better use. I’m not sure what type of diodes it uses but it can’t be as good as a couple cobs so i figured it would be an easy conversion.
I’m curious as to which model cri you would use/ how many to run them with the current driver I have? Picture included.
Trying to think of which COB you could use. 36v cobs could work although you are a bit low on the voltage, it is the A version so it should have a built in potentiameter. I have to goto work right now, but I’ll try to look up some to show you,
And I think the 50v COBs will be too much just barely.
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So i’d only be able to get a couple of them if they’re the 36v versions.
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I’d be willing to bet if you put a few 50v cobs on it to bring current low enough the forward voltage would be low enough.
Not exactly saying that’s going to get you the most for your money, but lemme go check something like cxm-22.
Edit… swing and a miss there. But you know what that driver would be about perfect for, chilled tech logic boards. I would email them because I know they differentiate between high and low voltage boards. I’ll bet they get you hooked up.
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Thanks again! I sent them an email so I hope to hear back soon. I’d love to keep this in my garden since it’s so well made.
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Yea I didnt think about those, good call.
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Unfortunately the driver is a no go as far as anything they offer. Surprisingly growmau5 responded to my email… at least that’s what it said!
I’ll have to sell my driver used and then buy a new one, or do something else entirely.
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Those have an internal dimmer right?
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As far as I know.
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Did he say why? I’ll see if I have time to go through data sheet today.
@Aolelon doesn’t Samsung have some 48v strips, 1120 maybe?
Cutter offers some stuff at 48v. You can try to email Mark and see what he says.
Yea I was actually just going to recommend those. The 1120mm strips are 46v. Single row is 1120mA and double row is 2240mA
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So you could fit 3 single row 1120mm f-series strips on 1 drivers giving you ~152w
3000 SI-B8V521B20WW
3500 SI-B8U521B20WW
4000 SI-B8T521B20WW
5000 SI-B8R521B20WW
Here are part numbers if interested for the single row. Strips.
Looks as if Digikey has 3000k and 3500k In stock for around 32$ each.
They are around 9000 lumens each and 171lm/w.
And with the strips you know you’re getting top bin as well so.
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That’s something I could do. Would probably benefit my grow space more than this spectrum king is.
Thanks so much for all the help. I’m excited to see what I can turn this into!
I think the double row 560mm is a 48 volt. But you might look at it to if space is a issue.
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Yes the f-series double row strips at 560mm are the same as the single row 1120mm, 46v 1120mA thanks for mentioning that @DoobieNoobie
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I think I’ll be going with the single row and adding strips to my current qb setup. Are there any benefits to adding a deep red light to mix as well? I primarily grow gorilla glue / and occasional hybrids.
Yes there are benefits. A lot of companies are beginning to add deep red or photo red mono LEDs to their setup. 630nm and up help when flowering. What were u thinking of adding?