Samsung F series Gen 3 amperage question

I understand but what I'm trying to tell is, isn't hooking up everything in series and dimming down to 1100 better option? Because if I paralel wire the strips and feel like dimming afterwards I would have to dim the strips really low (700-350ma). That kinda seems pointless. Maybe there is something I didn't understand don't get me wrong I'm just asking to make sure.

colocowboy said:

What happens if the cob dies? Will the leds overdrive and kill the strips, or the power supply overheat? Fault tolerance is on my mind as I’m wanting to put together a veg light with these strips and I’m trying to decide how hard to drive them. I won’t be using any cobs but this scenario has been on my mind. Thanks in advance!

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If your only using strips. All you need to decide is how high of a voltage circuit you feel.comfortable working with. If you run them all in parallel you need a 24vdc driver. Say 6 strips. In parallel. They all get 24vdc. But you divide the amperage/mA by the number of strips. If you wire your strips in series. Then you need a driver that puts out more than 24vdc. Bc in series you add the voltage of each strip. So you need a driver that puts out atleast 144vdc bc 24×6=144

GentleCaveman said:

I understand but what I'm trying to tell is, isn't hooking up everything in series and dimming down to 1100 better option? Because if I paralel wire the strips and feel like dimming afterwards I would have to dim the strips really low (700-350ma). That kinda seems pointless. Maybe there is something I didn't understand don't get me wrong I'm just asking to make sure.

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Your not hooking everything in series. The strips are in parallel and the cob is in series. And hooking it up that way theres no reason to dim. When you dim youre also taking out voltage. Which then increase amperage

If you already have the 1400mA driver that's how I would run them. You can hook it up however you want. That's up to you.

Your only going to be running the cob at 50w and the strips at 16.8w each. If you dim that. In your 2x2 tent. Your going to be below your wattage per sqft. And your plants will suffer and stretch. You're already under 30w per sqft. If you dim you going even under that. Its recommended atleast 30w/sqft to flower. Your at 29.3w/sqft at wide open.

I guess my question was looking at the mixed circuit you made to reference combining the leds for this fellow on the one driver. I’m trying to pin down the effects in a complete load when/if significant quantity of chips are removed but I imagine that this would technically not happen as whole strips wouldn’t fail simultaneously, except in the case of a whole cob failing. Sorry to divert the discussion guys. Also thanks for the info ww!

whytewidow said:

Your only going to be running the cob at 50w and the strips at 16.8w each. If you dim that. In your 2x2 tent. Your going to be below your wattage per sqft. And your plants will suffer and stretch. You're already under 30w per sqft. If you dim you going even under that. Its recommended atleast 30w/sqft to flower. Your at 29.3w/sqft at wide open.

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I don't think w/sqft means anything to be honest, we can't compare every watt with eachother. There is too many variables. I would like to know if I could see 600-800 ppfd lights being 12" away from canopy, atleast on 12" x 12" area that cob reaches trough.

GentleCaveman said:

I don't think w/sqft means anything to be honest, we can't compare every watt with eachother.

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30w/f is solid number with strips in the 175 lm/w range. I'd probably skip the cxb3590 in the center..... hot spot.

What if I changed my driver with HLG-120H-C1050A and just wired everything in series. Wouldn't that be much better?

1212ham said:

30w/f is solid number with strips in the 175 lm/w range. I'd probably skip the cxb3590 in the center..... hot spot.

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Cob is what im using right now, not that I went out of my to get it its just something I already have. So why not use it.

GentleCaveman said:

Cob is what im using right now, not that I went out of my to get it its just something I already have. So why not use it.

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I don't see what you gain, other than excess light in the center?

Watt per square ft in the middle of a room compared to in a just big enough reflective tent will be miles apart using the same light unit.

I use 3 double row strips per 2 ft, I reckon 6 singles could be equally effective.

Not gonna dig for pics, but they are well know on here. I was the first journal running Gen3s

1212ham said:

I don't see what you gain, other than excess light in the center?

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Actually I'm getting 25.2watts per square ft with only the strips if I run them @1050mamps. Thats not bad for 2x2 right?

You can have 30w/ft with a HLG-120H-24B driver. An HLG-120H-C1400A will actually go over 120 watts.

1212ham said:

You can have 30w/ft with a HLG-120H-24B driver. An HLG-120H-C1400A will actually go over 120 watts.

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I was thinking on using hlg-120h-c1050a so I can run 4 now and add 2 more strips when I have enough money to order again.

1212ham said:

You can have 30w/ft with a HLG-120H-24B driver. An HLG-120H-C1400A will actually go over 120 watts.

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154/155ish... it is actually a very good choice in terms of power for the money. I was looking at a system like that yesterday...

GentleCaveman said:

Actually I'm getting 25.2watts per square ft with only the strips if I run them @1050mamps. Thats not bad for 2x2 right?

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Did you ever try to run that 36V cxb @.700 yet? There on sale and I need them to fit into my system lol