Help a girl choosing quantum board/driver

[Danielson999]

Hi i was planning use a flat piece of aluminium maybe 5mm or more and the driver iam still figuring it out but maybe hlg 240 1750mah

The 240-1750ma would run your boards at about 125w each. The 320-2100ma would run your boards about 150w each. So just make sure you're within' the boards requirements so you don't exceed it's limitations.

 

[Kerovan]

Hi i was planning use a flat piece of aluminium maybe 5mm or more and the driver iam still figuring it out but maybe hlg 240 1750mah

Flat aluminum may not work out very well. You need fins to increase the area for heat dissipation. Quantum boards get hot.

 

[Green.Lady]

Flat aluminum may not work out very well. You need fins to increase the area for heat dissipation. Quantum boards get hot.

And if run the boards at 1050mah a flat aluminio piece will work ? I was thinking about make the alumio pice a little bit bigger than the boards. My problem also is, i cant find a heatsink with this mesures in europe 305*358MM so i will have to run the boards a little bit cooler to use a flat aluminio piece what you recomend ?

 

[bakedPotatoe]

No, it hasn't been "proven". They could say anything they want. They don't look like hlg boards.

Erm,it was because some 1 tried to leak details of another person on this forum buying from them....

 

[kingtitan]

Look how hard it is for you to get this thing going before you even have the stuff. This cheaping out is gonna cost you more and bite you in the ass in the very near future.

 

[Ryante55]

The diodes are samsung lm651c

That's what they all say isn't always true good luck with that.

 

[Ryante55]

Look how hard it is for you to get this thing going before you even have the stuff. This cheaping out is gonna cost you more and bite you in the ass in the very near future.

Right you don't save any money if it takes you a month to build a light that might have less output. Could have half a grow done! but I guess I think from a business standpoint if it's just for fun an there's no need to cover costs it could be fun to order some parts an try to build stuff

 

[Rocket Soul]

And if run the boards at 1050mah a flat aluminio piece will work ? I was thinking about make the alumio pice a little bit bigger than the boards. My problem also is, i cant find a heatsink with this mesures in europe 305*358MM so i will have to run the boards a little bit cooler to use a flat aluminio piece what you recomend ?

For eu heatsinks i recommend poweralia.com. i know they got at least a 300mm wide extrusion heatsink under the thermal management section. Think they are spain based. You can also try searching this forum for eu or uk heatsink for a thread

 

[Moflow]

Here ya go

https://www.poweralia.com/extruded-profiles-heatsinks

 

[Randomblame]

And if run the boards at 1050mah a flat aluminio piece will work ? I was thinking about make the alumio pice a little bit bigger than the boards. My problem also is, i cant find a heatsink with this mesures in europe 305*358MM so i will have to run the boards a little bit cooler to use a flat aluminio piece what you recomend ?

That was my keyword...

Simply glue a few c-channels to the sheets backside. I've used cheap e3ay thermal glue and epoxy only
for the last few centimeters to keep the channels safe in place. This works great!

The one below is 14x 24", made of a 3mm alunimum base plate and eight 10x 20x 10x 2mm c-channels and tested with 6 COB's and 430/670nm mono's running at 150w. The heatsink stays below 50°C even after 18h, passively, only with the small breeze inside a 3ft² chamber.

BTW,
even if you find cheap heatsinks, shipping costs will double the price.



Another old shot I've found but only with the 6 COB's @700mA.

 

[Green.Lady]

Here ya go

https://www.poweralia.com/extruded-profiles-heatsinks

For eu heatsinks i recommend poweralia.com. i know they got at least a 300mm wide extrusion heatsink under the thermal management section. Think they are spain based. You can also try searching this forum for eu or uk heatsink for a thread

Damn those heatsinks are crazy expensive lol more than boards heheh thanks guys

 

[Moflow]

The piece I got from poweralia cost 69€ and 30€ shipping. Spain to UK
I tried UK based BAL Group but they were more expensive.

 

[Randomblame]

Hehe! Not the one above
Costs me only 25€uros and a half hour to glue the channels in place...

 

[Green.Lady]

Hehe! Not the one above
Costs me only 25€uros and a half hour to glue the channels in place...

Your heatsink is very nice can you showme more details? PM

 

[Moflow]

https://www.poweralia.com/extruded-heatsinks-bars/rg14068-1000-pw

This is the one I purchased.
I cut it into 2 x 18" lengths for 2 x GrowGreen boards at 200 watts per board.
I also have a GrowGreen board on a flat plate of aluminium 20 x 24" i think, id have to check. about 6/7mm thick at 150 watts passively cooled

 

[Moflow]

Hehe! Not the one above
Costs me only 25€uros and a half hour to glue the channels in place...

My flat plate was free..... lol

 

[Moflow]

The board in pic is a Growgreen board. It is probably made in the same factory.
384 samsung diodes on a 4" x 12" diode footprint at 150 watts.
Your board sounds interesting.
I think your boards will run cooler than mine as they'e 3 times the size .
They should work just fine

 

[Green.Lady]

The board in pic is a Growgreen board. It is probably made in the same factory.
384 samsung diodes on a 4" x 12" diode footprint at 150 watts.
Your board sounds interesting.
I think your boards will run cooler than mine as they'e 3 times the size .
They should work just fine
View attachment 4048814 View attachment 4048818

Nice grow yes probably the 336 led board will run cooler than yours, less leds and more spreaded, will run cooler and better distribuition of light, maybe, a 7mm aluminium plate its enough for the heatsink i should run the boards at what mah ?what you think ?

 

[Moflow]

Nice grow yes probably the 336 led board will run cooler than yours, less leds and more spreaded, will run cooler and better distribuition of light, maybe, a 7mm aluminium plate its enough for the heatsink i should run the boards at what mah ?what you think ?

I'd go ahead and use the 7mm if that's whats available .
Run them at 150 watts a board. You can always dim them back to 100w or whatever.

 

[DankaDank]

Nice grow yes probably the 336 led board will run cooler than yours, less leds and more spreaded, will run cooler and better distribuition of light, maybe, a 7mm aluminium plate its enough for the heatsink i should run the boards at what mah ?what you think ?

If budget is key, stick them on plate and hang a fan above the fixture so that it is blowing directly on the plate, You should be able to get the wattage you need. Also 7mm thick is not necessary as you don't need rapid heat transfer due to the large surface area of the boards and the absence of fins. So there will be little difference between say 4mm and 7mm.