DIY with Quantum Boards

Roger A. Shrubber · Mar 25, 2017

i promised to post the new home made unit when i got it running, here it is

i have the money to spend, i just get stubborn sometimes. the prices they charge for heatsinks just piss me off, its just fucking milled aluminum ffs, not gold plated platinum. so we made out own, angle aluminum and c channel thermal glued together, cost 12 bucks, and works great, its way warmer than the boards ever get

went with this led
https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SPMWH1221FD5GBV0SA/1510-1467-1-ND/6052630
in both 3000k and 5000k, alternating rows. still running off the same power supply and buck converter, the plants seem to be loving it.
i have the power supply with both boards plugged into a kill-a-watt meter, i'll post what it draws from the wall in a couple of days when its had time to get a good average.
the small board is set to 2 amps and 44 volts, and the new board is set to 4 amps at 42 volts, neither one is getting much more than warm, and the plants are eating it up.

sixstring2112 · Mar 25, 2017

augusto1 said:
How hight from the floor are the lights installed? Thanks in advance.

they are about 6 ft 6 in off the floor so i can walk under them without hitting my head :eyesmoke:

skunx818 · Mar 25, 2017

sixstring2112 said:
they are about 6 ft 6 in off the floor so i can walk under them without hitting my head

Barely...! :cool:

sixstring2112 · Mar 25, 2017

skunx818 said:
Barely...!

No theres lots of room to walk around,i got a solid inch to 1.5 inch of clearance haha.

Mohican · Mar 25, 2017

Safety Reminder

Wear eye protection around these diodes. The light is very intense.

GardenGuy · Mar 25, 2017

@Roger A. Shrubber i really like this panel

ttystikk · Mar 25, 2017

Roger A. Shrubber said:
i promised to post the new home made unit when i got it running, here it isView attachment 3912968
i have the money to spend, i just get stubborn sometimes. the prices they charge for heatsinks just piss me off, its just fucking milled aluminum ffs, not gold plated platinum. so we made out own, angle aluminum and c channel thermal glued together, cost 12 bucks, and works great, its way warmer than the boards ever get View attachment 3912969 View attachment 3912971
went with this led
https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SPMWH1221FD5GBV0SA/1510-1467-1-ND/6052630
in both 3000k and 5000k, alternating rows. still running off the same power supply and buck converter, the plants seem to be loving it.
i have the power supply with both boards plugged into a kill-a-watt meter, i'll post what it draws from the wall in a couple of days when its had time to get a good average.
the small board is set to 2 amps and 44 volts, and the new board is set to 4 amps at 42 volts, neither one is getting much more than warm, and the plants are eating it up.View attachment 3912981

I dig the low buck approach here.

Blake_n_Concentrates · Mar 25, 2017

What the max temp for these things? My 2 QB288 running at 2100 mah with the slate 1 are currently running around 140F at the board and heat sink. The tent is nice and cool like 75F. Is that okay or should I get some air on these things??

ttystikk · Mar 25, 2017

Blake_n_Concentrates said:
What the max temp for these things? My 2 QB288 running at 2100 mah with the slate 1 are currently running around 140F at the board and heat sink. The tent is nice and cool like 75F. Is that okay or should I get some air on these things??

You need good air movement for your girls anyway. That should be enough. Still air is bad for everything.

Blake_n_Concentrates · Mar 25, 2017

Of course. Here's my setup for the moment. Will be adding more fans when they come, but I still don't see that bringing down the temp of the fixture unless I put a fan right on it or use a PC fan to cool it. Seems a little hot to me.

robincnn · Mar 25, 2017

Blake_n_Concentrates said:
What the max temp for these things? My 2 QB288 running at 2100 mah with the slate 1 are currently running around 140F at the board and heat sink. The tent is nice and cool like 75F. Is that okay or should I get some air on these things??

140F is 60C
This is a good temperature considering passive cooled.

Blake_n_Concentrates · Mar 25, 2017

Okay cool. I just wanted to be sure, as this is my first run with LED and I am used my air cooled hood on my HPS

ChaosHunter · Mar 25, 2017

Blake_n_Concentrates said:
Okay cool. I just wanted to be sure, as this is my first run with LED and I am used my air cooled hood on my HPS

If you move the driver outside of the tent your fixture would run a lot cooler. The driver adds a lot of heat.

Dreddd · Mar 27, 2017

Roger A. Shrubber said:
i promised to post the new home made unit when i got it running, here it isView attachment 3912968
i have the money to spend, i just get stubborn sometimes. the prices they charge for heatsinks just piss me off, its just fucking milled aluminum ffs, not gold plated platinum. so we made out own, angle aluminum and c channel thermal glued together, cost 12 bucks, and works great, its way warmer than the boards ever get View attachment 3912969 View attachment 3912971
went with this led
https://www.digikey.com/product-detail/en/samsung-semiconductor-inc/SPMWH1221FD5GBV0SA/1510-1467-1-ND/6052630
in both 3000k and 5000k, alternating rows. still running off the same power supply and buck converter, the plants seem to be loving it.
i have the power supply with both boards plugged into a kill-a-watt meter, i'll post what it draws from the wall in a couple of days when its had time to get a good average.
the small board is set to 2 amps and 44 volts, and the new board is set to 4 amps at 42 volts, neither one is getting much more than warm, and the plants are eating it up.View attachment 3912981

i like how it seems that when lighting with QB's there are no shadows anywhere!, look at the plants in the last picture, where are the shadows?

lukio · Mar 27, 2017

Dreddd said:
i like how it seems that when lighting with QB's there are no shadows anywhere!, look at the plants in the last picture, where are the shadows?

reflective walls and floor will do that

Roger A. Shrubber · Mar 27, 2017

there are actually about a dozen very faint shadows all over the damn place

l0wbob2016 · Mar 27, 2017

i just saw this on youtube, its like crazy big quantumboards. 24V or 48V @ 100W a panel take a look:

got 330 LED's per panel and 6 panels

how do they ged rid of the heat? or isnt there much heat to get rid off?

ThaiBaby1 · Mar 27, 2017

l0wbob2016 said:
i just saw this on youtube, its like crazy big quantumboards. 24V or 48V @ 100W a panel take a look:

got 330 LED's per panel and 6 panels

how do they ged rid of the heat? or isnt there much heat to get rid off?

looks like the aluminum sheet they are mounted on would get too hot. Im thinking about a build like this using samsung strips and an aluminum sheet as a heatsink. I figured to use one or two 200 mm comp case fans to actively cool them.

pop22 · Mar 27, 2017

OOOooooo they're using GOLD LIGHT..................sheesh.......If you can't blind em with science, baffle em with bullshit...lol

l0wbob2016 said:
i just saw this on youtube, its like crazy big quantumboards. 24V or 48V @ 100W a panel take a look:

got 330 LED's per panel and 6 panels

how do they ged rid of the heat? or isnt there much heat to get rid off?

pop22 · Mar 27, 2017

Integrated sphere data ( not impressive... )

DIY with Quantum Boards

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