Please Help - Cheap Diy Cob Build For Small Grow (3x2ft)

BombBP · Jan 20, 2018

This light cost me $200 to build... $130 if you take off the wifi equipment. 220w of led.

Northernpop · Jan 20, 2018

Cheers pal. That looks sweet !!

I've found this kit, and I'm probably going to have them shipped from USA, as that seems to be the cheapest way.

Happy growing.

Toaster79 · Jan 20, 2018

Toaster79 said:
I wouldn't bother with that chinese trash.

Try this: https://m.alibaba.com/product/60633...-top.html?spm=a2706.8291533.0.0.5b31f29hIbP5b

Northernpop said:
Cheers pal. That looks sweet !!

I've found this kit, and I'm probably going to have them shipped from USA, as that seems to be the cheapest way.

Happy growing.

You could save yourself $70 if you checked that link I posted. That's almost 1/4 of the price.

Northernpop · Jan 20, 2018

Sorry Toaster. I didn't download the app first. That's great. Many thanks pal !!

I've sent them a request, and look forward to hearing from them. This link is much cheaper.

Peace out.

Toaster79 · Jan 20, 2018

Northernpop said:
Sorry Toaster. I didn't download the app first. That's great. Many thanks pal !!

I've sent them a request, and look forward to hearing from them. This link is much cheaper.

Peace out.

No biggie. Kingbrite is a reliable and reputable dealer. They'll also make sure you get a separate receipt so customs don't rob you.

Northernpop · Jan 20, 2018

Toaster79 said:
No biggie. Kingbrite is a reliable and reputable dealer. They'll also make sure you get a separate receipt so customs don't rob you.

Do I need to do anything regarding receipts and customs, or would Kingbrite sort that? I assume it will be secure too.

Cheers again, awesome !!

Northernpop · Jan 22, 2018

Been chatting to Nancy at kingbrite, and she's sorted a list of kits. Very cheap too, compared to UK (no shock there). 5 cobs with a MW HLG-240H-C1400B. Glass covers too.

Thanks for the help everyone. I wouldn't have had a clue.

Peace out !!

Northernpop · Jan 22, 2018

Must thank you guys again, BombBP and Toaster79.

I think this will be sweet for a 2x3ft grow, and all for $183.50 !!

250W CLU048 1212 diy cob led grow light kit
This kit contains the following components:
5pcs of Original Citizen CLU048 1212 3500K 80CRI cob
5pcs of thermal tape
5pcs of Ideal holder 50-2204CT
5pcs of Ideal 50-2100AN
5pcs of KingBrite Reflector KB-D82-90RF
5pcs of Pre-drilled Passive heatsink Φ133*H70mm(for 55-65W)
5pcs of Wago quick connectors
1pcs of Original MW driver HLG-240H-C1400B
1pcs of TOCOS (soldered) 100K linear potentiometer
Cables + Screws

Happy growing.

BombBP · Jan 22, 2018

That lights going to be bad ass.

Northernpop · Jan 23, 2018

BombBP said:
That lights going to be bad ass.

Can a single C1400B driver run 5 cobs?

DGP · Jan 23, 2018

The 1400 number means it will provide constant current at up to 1.4 amps. The 240 means 240 watts (actually specd at 250w)....more than enough to drive the five lights. Looks like since this is most likely wired in series each cob will see 1.4amps at ~36v per cob.

Toaster79 · Jan 23, 2018

Northernpop said:
Can a single C1400B driver run 5 cobs?

Check datasheet for citizens, lookup or calculate the forward voltage at given current at 50°C then multiply that forward voltage with 5 and have a look at meanwell datasheet to see what is the maximum output voltage. Depending on the junction temperature of the COB, the voltage will eventually stabilize and so will the current. You might not get the whole 1400mA but pretty close.

Toaster79 · Jan 23, 2018

With 179V max on the output of the driver

each COB will see 35.8V. Datasheet for the citis says 34.6V @1080mA @25°c typical.

Take some heat in account and the Vf will drop enough to get the full 1400mA

Northernpop · Jan 23, 2018

So it should work fine guys? I must read up more first.

Cheers !!

BombBP · Jan 23, 2018

Yes, that driver is perfect.

Northernpop · Feb 6, 2018

BombBP said:
Yes, that driver is perfect.

Cheers BombBP, et al. Have you seen this item on Alibaba guys? It's cheap as chips. Literally!!

Please Help - Cheap Diy Cob Build For Small Grow (3x2ft)

Please Help - Cheap Diy Cob Build For Small Grow (3x2ft)

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Please Help - Cheap Diy Cob Build For Small Grow (3x2ft)

Please Help - Cheap Diy Cob Build For Small Grow (3x2ft)

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