Samsung q series

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SamWE19

Well-Known Member
f series said:
How thick is this aluminum,would you mount it on anything? I didn't see if you said you got the 1 foot versions, but i hear cookie sheets are great, I'd probably just buy aluminum flat bars like 1/8 inch thickness and cram what I could on 1 bar then space bars as needed
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Flashing is 0.6mm thick.

Yeah I got the one footers

The flat bars Would probably work out a bit more expensive than the flashing but thicker. My understanding though is that thickness only helps with spreading the heat. Since they are bars the heat has nowhere to spread to anyway. So wouldn’t the flashing have the same surface area and same effectiveness at being a heatsink ?

The flashing has more surface area actually between the strips but I suppose the bars have the 1/8 inch edges which may even them out
 
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Airwalker16

Airwalker16

Well-Known Member
SamWE19 said:
That’s the issue I was facing in regards to the power/heat issue.

If I run them at max around 10w each and have the strips on alluminium flashing how many strips could I put on that aluminium flashing before the heat is not dissipated fast enough?

Theoretically I could have the strips touching and have 15 strips per sq ft but that would be 150w per sqft which would be insane .

I’m aiming for 3 strips per sqft with 30w each as it’s just for mother/veg room.

Would they be ok on the flashing?
Also would you consider that high enough power for strips to be running higher above canopy
Cheers
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You need to buy 1/8"thick U CHANNEL in the widest size you can find it. The legs don't need to be so long but just the side you'd mount strips to.
 
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SamWE19

Well-Known Member
Airwalker16 said:
You need to buy 1/8"thick U CHANNEL in the widest size you can find it. The legs don't need to be so long but just the side you'd mount strips to.
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They are very expensive here though. I’d be paying more for the aluminium than I did for the actual strips. If I absolutely need those though ill bit the bullet and buy them but 400 1ft u channels sounds insane
 
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SamWE19

Well-Known Member
Cheapest I’m coming up with is a 4 inch wide 2 inch sides sticking up, 1/8 inch thick for around 83 dollars. That’s for 5m length. It’s bloody extortion

Problem with that though is I end up with 4 strips on one u channel but the strips won’t be equally spaced apart then will they? It will be batches of 4 close together followed by a gap then another 4? Would that make much a difference for getting an equal spread?
 
f series

f series

Well-Known Member
SamWE19 said:
Cheapest I’m coming up with is a 4 inch wide 2 inch sides sticking up, 1/8 inch thick for around 83 dollars. That’s for 5m length. It’s bloody extortion

Problem with that though is I end up with 4 strips on one u channel but the strips won’t be equally spaced apart then will they? It will be batches of 4 close together followed by a gap then another 4? Would that make much a difference for getting an equal spread?
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____________
____________. <---- 4 foot flat bar

____________
== == == == <---- 4 lights on one bar
Then space each bar how ever you like. I hope that makes sense


I think a 12 foot bar is near $20
How much did lights cost per unit after bulk price reductions?
 
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SamWE19

Well-Known Member
f series said:
____________
____________. <---- 4 foot flat bar

____________
== == == == <---- 4 lights on one bar
Then space each bar how ever you like. I hope that makes sense


I think a 12 foot bar is near $20
How much did lights cost per unit after bulk price reductions?
Click to expand...
Yeah I’m in Europe I paid around 5.28 usd per strip but the aluminium bars ...

The smallest aluminium bar I could get away with is the 20mm x 20mm and cheapest option is the flat bars.

The aluminium flat bars would cost me 3 dollars per meter. So 1 dollar per 1 foot strip. 400 usd for heat sinks? Do you guys pay that much for the heat sinks?

I could get the aluminium flashing and pay 50 usd for the whole setup maybe an extra 10 usd on timber to hold flashing in shape
 
f series

f series

Well-Known Member
Chip Green said:
I do. It's extremely effective with BXEB strips.
Heatsinking has little to do with thickness. It's a matter of efficient thermal transfer, and exposed surface area.
Click to expand...
He's gonna be maxing out whatever strips he's getting, and he's got 400 of them
 
Chip Green

Chip Green

Well-Known Member
Build a test panel. It's going to be a balancing act of strip spacing, vs surface area regardless of choice of material.
It may not be possible to get the flashing to keep up, but that really depends on how much heat it's being asked to dissapate.
 
cobshopgrow

cobshopgrow

Well-Known Member
SamWE19 said:
They are very expensive here though. I’d be paying more for the aluminium than I did for the actual strips. If I absolutely need those though ill bit the bullet and buy them but 400 1ft u channels sounds insane
Click to expand...
had a similar problem and therefore went with t-slot 2020, which is similar priced then 20mm square profile here.
so depends on where you are, may check that option.
as you have so many you can probably drive them so low that you wont need much heatsinking, or 2 to 4 90 degree rotatet t-slots could do that for you (they have quite some surface area due to their design).
if you have too many strips and not enough space, take 2 or more in parallel on your 36v driver.
 
Powertech

Powertech

Well-Known Member
somebody help me out with the Q series data sheet. Says the 562 is 20.8 VDC min and 23.1 VDC max, with 1000mA max, yet says max power is 10.4??? Uhhhh, so even at minimum voltage, you can't really get to 1000mA ? Which is wrong or am I just really high?
 
f series

f series

Well-Known Member
Parallel wiring divides all the power between however many lights you have. So if you have a 6 amp driver and 6 lights,
6000 mA will be diverted to 6 lights equally. Aka 1000 mA per light.
If you have 6 amp driver and 3 lights, each light will get 2000 mA
Also your driver will have a voltage maximum and minimum
 
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