DIY with Quantum Boards

BobCajun said:

Cobkits is out-stocking the original sellers of QBs. Here's a great business plan; offer a product for sale then constantly be out of stock. And btw, if anyone was smart they'd have some drivers manufactured which work as well as Meanwells but are cheaper. How hard could that be? How elaborate would a driver need to be to produce light for plant growth rather than human eyes? My guess, not very. We've got everybody making LEDs but nobody making the drivers which cost as much or more.

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You can buy a cheaper driver but it will be less efficient and less reliable. Both issues cost money, so how would it be saving you anything? Seems counterproductive in the face of the design goals of efficient and long lasting performance, especially when the money saved amounts to only a few dollars.

Why are you complaining about @CobKits having them in stock? You wanna buy some boards? Buy them! The things people find to complain about these days...

Check retailers on HLG.

Power supplies are hard. It is especially hard to make them quiet. The UL testing is a bitch also.

Day 2 on the 4-304qb's. All is well. Ordered from growers lights. Arrived on time, well packed and easy to assemble. Those are 5 gal coolers. Chillers and coolers solved my underdeveloped root issues.

Sirtwistsalot said:

Day 2 on the 304qb's. All is well.

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Interesting setup! Looks like it works well tho.
How is the net in place?

Sirtwistsalot said:

Day 2 on the 304qb's. All is well.

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Nice setup love the coolers.Does it help with temps?

BobCajun said:

Cobkits is out-stocking the original sellers of QBs. Here's a great business plan; offer a product for sale then constantly be out of stock. And btw, if anyone was smart they'd have some drivers manufactured which work as well as Meanwells but are cheaper. How hard could that be? How elaborate would a driver need to be to produce light for plant growth rather than human eyes? My guess, not very. We've got everybody making LEDs but nobody making the drivers which cost as much or more. Bridge rectifier and a current regulator. How much could that cost to make?

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Dude someone definitely pissed in your cheerios this morning.

Your little tantrum is uncalled for. I simply letting another member know they can also grab the QB boards from him, and there is stock at the moment.

There is tons of cheap crappy drivers out there, and then there are those that come with UL certifications, 5 year warranties, dimming etc which come from respected companies such as mean well.

You should learn about supply and demand, it clearly is a great business model if they are constantly selling out.
Or look at mars hydro who probably has a warehouse with 100,000+ units collecting dust.

3000k 304s sold out in a flash!
Glad I got mine!

I seriously think i got the last 2, and i was actually on the hlg website when the notification came in, hit refresh, added THREE boards to my cart, and before i could complete the transaction i only got 2 lol..... i feel like the last kid to make it on base in tag

Was 18 when I ordered 2. 2 left after, which you got. Craziness...

I got my 6 qb 288s and 2 triple heatsinks I'm very happy

Sorry we made only limited 304 in 3000K
A lot of the 304 3000K stock went to growers lights and they will be selling 260w kits based on 2x QB 304 and hlg-240h-c1050A

Hey @robincnn - where is your accent from? I heard you on Grow Mouse's video from earlier this year. It was a great interview.

@robincnn to wire 3 qbs on slate 2 triple should use320h c1400 to wire it in series correct ?

How are the 550s working thus far?

Jp.the.pope said:

As promised 3 550s

View attachment 3969465
Thanks
@Stephenj37826 @robincnn

Multiple orders, fixed problems, free nutes basically great service all around...not to mention very happy plants.

Setting up the pulleys tonight

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I was stoked when I got the restock email, but the 304s are already gone hah! I'll get one soon~

kaoss_11 said:

How are the 550s working thus far?

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Love em.

Penetration seems to be about 2-3 feet. If you grow a hedge you might need side lighting but the density and growth rate is better than my cxb3590s.

Great spread. Plug and play. Easy to use with great results.

I'm super pleased. Would reccomend and buy again if I didn't have other lights.

Hello everyone again looking for some confirmation of safety in a plan I have.

I have two single sized heatsinks in planning on connecting with 2 flat aluminum bars with some nuts and bolts.

If I also fix my driver across those aluminum bars I won't run into any conductivity problems will I?

Thanks in advance for any help.

Quick question!

I'm getting ready to get my hands (if i'm quick enough) on a 260w kit.

I assume you can chose spectrum, and correct me if i'm wrong but for flowering and perhaps some minor veg the best spectrum will be 3000k right?

But my main question is if I can choose the driver for this kits or when you buy them you get a specific one with the ideal mA, like 1.4mA or whatevs?

I mean, i saw what robin wrote before about most of the 304 3000k going to 260w kits with 1050mA but I was just wondering if you can choose.

As you can see I don't want to miss even a second to make the purchase and If I can choose I was wondering what the ideal mA will be, and if cant', then it doesn't matter hahaha.

Also I got confused since the video posted on the site showing the kit review showed the a 2100 driver

Can you hit me through pm if possible and you have the time? I don't want to muddy up this thread, plus there aren't many running the 550 and most guys here seem to grow in tents. We are looking to build a room of these.

Jp.the.pope said:

Love em.

Penetration seems to be about 2-3 feet. If you grow a hedge you might need side lighting but the density and growth rate is better than my cxb3590s.

Great spread. Plug and play. Easy to use with great results.

I'm super pleased. Would reccomend and buy again if I didn't have other lights.

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