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Bakstein420
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How many LED's per board and the sizing of the board?

 

Looking at those pics, the amount of LED's you get... I don't think I'll be interested.

You'd need a lot of these to compare to 2x QB288's

 

Edit: what power supply do they give you? The pics say it used 250v ac. So straight from our wall socket.

 

Sent from my Redmi Note 7 Pro using Tapatalk

 

 

 

 

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  • 3 weeks later...

Migro did a video on them 

1.49 PPFD/W

Convenient, but not great efficiency.  Looks like a bit of a death trap, too.

Compared to buying a 2 PPFD/W light for twice the price,  you'll save money up until you've used about 600kWh. 

So you'll get 500 days worth of 12hrs/day light (or 333 days of 18 hrs/day), until it becomes more expensive overall with electricity, than a 2.0 PPFD/W light.  (Assuming price of electricity doesn't rise)
 

 

 

 

Edited by growopz
grammar
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19 hours ago, PsyCLown said:

@Bakstein420

So that is for 2x of the circle boards and 1 heatsink?

I assume both of the circle boards fit on 1 heatsink?

 

How many LED's per board and have you received it yet?

@PsyCLown The heatsink he offered was not wide enough for the boards, ended up just taking the lights at R1200.00 each, R2400.00 total.

Quick count got 148 LED's per a board.

The lights arrived a few days after ordering with 10x Sugar Black Rose x Afghan Kush (reg) seeds.  

Seeds were just in a bank bag so don't really expect much 😂 probably won't bother growing them.

@growopz  As for the power consumption, my boss has agreed to let me to do my microgrow in my air conditioned office, so he will be fitting the bill for utilities.

Here's a few pics of my DIY light, used what ever I found laying around the workshop.

20191011_081206.jpg

20191011_081217.jpg

20191011_081232.jpg

Edited by Bakstein420
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Alright cool, nice heatsink you made there, I assume the fan is blowing air in and across the "fins"?

 

R2400 plus the heatsink is not a terrible price, although curious as to how many LED's are on each board - how it may compare against a more traditional Quantum Board.

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51 minutes ago, Bakstein420 said:

@PsyCLown  Correct, the fan is blowing over the heatsink.  It think I went a little overboard there as the heatsink barely gets warm without the fan running.

There are 148 LED's per a board.  Will start a grow journal when I get going to see how they do.

So approx 60W - 80W (I think closer to 60W though) per circular board in terms of LED output.

If they are all LM301B diodes, then around 80W would be the absolute max, although I have not seen any manufacturer advertise their QB's at the max rated power and it is generally not advised to run LED's at max either, you lose efficiency and it decreases their life span.

 

So around 120W of LED lighting from that light you have there. I would be curious as to the actual draw from the wall, anyway are you able to check the amps it pulls from the wall after being on for 5 - 10 min and then the voltage coming out of the wall?

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@Nostrovia The guys name is Brad (stays in Capetown) zero seven eight four six zero zero six eight four.

Did all my communications with him over whatsapp.  He sells a bunch of other lighting options as well.

Alternatively, you could get it cheaper on AliExpress if you don't mind the wait.

https://www.aliexpress.com/item/32996402921.html

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57 minutes ago, Bakstein420 said:

@PsyCLown  According to the video above stats are as follows:

Power:  106W

PAR output:  159 PPFD

Efficiency:  1.49 PPFD/Watt

I don't have the gizmos to test myself.

That is likely the draw from the wall then, I still suspect the actual power which the LED's are receiving is around 60W, 80W at a push considering the max rated draw per LM301B diode is 0.57W

 

So if they are putting out 60W of power and it's drawing 106W, the efficiency is pretty shit. 44W of power being wasted. Almost double the power - not something you need to be concerned about since you are not paying for electricity but just something to keep in mind for others who are interested in possibly purchasing these lights.

 

Running two lights will lead to 88W of power being "wasted" and running it on 18 hours a day (for veg) leads to 65 KWH per month of wasted electricity and a total usage of 153KWH per month.

 

So let's put this into an easy to understand rand value, the below calculations are based on a rate R1.82 per KWH.

2x Circular lights per month will cost you R278.4, this is for a total output of around 120W of LED lighting.

Of that amount R118.30 is wasted due to the lack of efficiency.

 

Convenient solutions for sure, not light on electricity. Rather close to an HID setup actually. If they are legit LM301B diodes, they are great diodes! The same LED's I run actually.

 

How many plants do you plan on growing under that light?

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12 minutes ago, Bakstein420 said:

Hoping to grow 2x autoflowers but will start with just 1 at first.

Nice, I think 2 would be the limit in terms of a nice spread and good light penetration.

The LM301B are awesome diodes! Please create a grow diary and keep us posted with your grow.

 

Are you going to be using a tent to grow in? Also what light cycle do you plan on using? If it is in an office where people are and with electronic equipment light leaks would be a concern of mine - however since it is an autoflower you can minimize the dark period duration... You could even run the light for 24 hours a day (never have a dark period).

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