Aussie Growers Thread

2easy

2easy

Well-Known Member
im still researching further and further into this LED thing. quantum boards do sound good but seem like a pain to get because of there only currently being one supplier etc.

i was just checking out the LED strips that use the same LED as the quantum boards and man i can build some pretty efficient lights with those bad boys. getting a 1.2m tent down to 300w and that is with bulk light. you could probably do it with less. still looking at around the $800 mark though but running a 1.2m tent on 300w and never having to replace a bulb they would pay for themselves in no time

Edit: scratch that the harder and longer you dig you just keep finding better and better lights.
just found these bad boys

https://www.digikey.com.au/product-detail/en/samsung-semiconductor-inc/SL-B8T4N90LAWW/1510-2453-ND/8536569

192L/w $40 each throwing out 8500lumens per strip. if you threw 10 of them into a tent it would be insane. run cooler than cobs and way more efficient. plus by the time you bought drivers with these and some heatsink strips to mount them on you could probably do the whole lot for around $600-$700
 
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dopeonarope

dopeonarope

Well-Known Member
just go to the link below, pick your space or as close to it and the hard work is done for you. Same number (or more) of the same (or better) diodes than a QB. Totally customisable, fuck all shipping when compared to a QB as well. Digikey will deliver all this stuff in a few days provided they're in stock.

http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/

The only reason I'd buy a quantum board is if I was feeling lazy and couldn't be fucked knocking it together myself :D
 
dopeonarope

dopeonarope

Well-Known Member
Also, I reckon 300w would really struggle to cover a 1.2 tent. My strip light is 230 watts (about 250w draw) and it does a 3x3 (just I reckon). You could get the crop to the end in a 1.2 with 300w but you'll wish youd chucked a thowie in there when you saw the yeild you gave up. I wouldnt go less than 5 or 600 watts in a 1.2 but I'd probably go a touch more and then dim it at the driver if I had to
 
2easy

2easy

Well-Known Member
dopeonarope said:
Also, I reckon 300w would really struggle to cover a 1.2 tent. My strip light is 230 watts (about 250w draw) and it does a 3x3 (just I reckon). You could get the crop to the end in a 1.2 with 300w but you'll wish youd chucked a thowie in there when you saw the yeild you gave up. I wouldnt go less than 5 or 600 watts in a 1.2 but I'd probably go a touch more and then dim it at the driver if I had to
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yeah thats what i am saying.considering the cree cobs i was looking at are putting out 145L/w these strips are a lot more efficient at 192L/w. you are getting a lot more bang for your buck. the maths works out at about the same amount of light as a 600w HPS but that is in lumens and the LED's at 4000k with a cri of 80 should have much more Par output than a 600w hps.

In any case there is only one way to find out. i will build one and see. i love electronics. i build racing drones from scratch, this will be a little bit of fun for me
 
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2easy

2easy

Well-Known Member
@dopeonarope seriously though have you done anything special or do the strips not really need any heatsinks to perform.
i was thinking just mounting them to aluminium angle would probably do the trick since the running temp is so low anyway
 
dopeonarope

dopeonarope

Well-Known Member
2easy said:
@dopeonarope seriously though have you done anything special or do the strips not really need any heatsinks to perform.
i was thinking just mounting them to aluminium angle would probably do the trick since the running temp is so low anyway
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Angle would be fine. I just have mine on 4mm aluminium sheet and so long as you make good contact it's fine. The aluminium sheet I used has that tread criss-cross pattern on one side so it looks fuckin awesome too
 
2easy

2easy

Well-Known Member
dopeonarope said:
Angle would be fine. I just have mine on 4mm aluminium sheet and so long as you make good contact it's fine. The aluminium sheet I used has that tread criss-cross pattern on one side so it looks fuckin awesome too
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looking into that strip i posted as well and it does not use the same diode as the quantum board it uses the next one up which is more efficient again. same one as in the q-series strips on that ledgrower site you posted only these H-influx series strips run at twice the amps as the q-series strips giving them a fair bit more output. they are designed for lighting warehouses and carparks. the specs look the goods.

its going to be about 2 months before i have the cash to do this but im pumped. cant wait.

just priced some aluminium checkerplate. looks like it would be pretty cost effective and would be so much easier to work with than building a frame out of angle. cheers for the tip
 
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