NOOB CXB 3070/3590 build

_Mango_

_Mango_

Member
Hello to all.

First time grower, long time smoker. Been lurking for a bit. I'm 3 weeks into my first grow.
I have 3 NYC Sour Diesel autoflowers in a 3(w)x2(d)X5(h) tent in 4 gallon pots.
I thought I did my homework before I bought a light but I think I might have made a mistake with my purchase of a dorm grow g8led 240 watt burple special. Everything I've read (that wasn't manufacturer shill) says it's no good for flowering. I'm not sure how much time I have before these start flowering but I think I need to do something pronto. I'm ready to order my parts but since I already made one hasty purchase I figured I would post here for advice/cautionary tales.

Went through quite a bit of the "new to led thread" and some other led threads. I was going to buy a better light but after poking around and seeing this video by greengenes
I feel very confident I can make my own and cut my costs in half. The only thing stopping me before was the case/ heat sink but I see I can buy a prefab / made heat sink. I've wired/installed my own car stereos since I was 16 and for a while even competed with them so wiring should be no problem.

I'm making a few small changes to greengenes design and I'd love it if someone could just let me know if what I'm doing is kosher.
I believe it is but always like to be safe.

My main question is:

1.Can I use 3 Cree cxb3590's with a Meanwell HLG185H-C1400b?
I'm pretty sure I can since the forward voltage is the same as the cxb3070's but double checking with the knowledgeable people here.

2.I need to change the size of the heat sink to 30" to fit my grow space. I will only have 3 cobs instead of 4 like on the 36" heatsink in the video. Again should be no problem but my ocd needs confirmation.

I'm going to post this before I lose it but I probably have more to add.

Thanks in advance.

_mango_
 
iHearAll

iHearAll

Well-Known Member
and of course you can dilute the heat better on that particular panel by only using 3 chips. do some quick math to figure out the best spacing so you dont have a dark zone. but duh i dont need to tell you lol GGOOODD LUUUCKK
 
G

grouch

Well-Known Member
It will cover the 3' width well but a single 50w cob might struggle with covering a two foot depth completely. If you dont mind a little less light around the edges you should be ok
 
iHearAll

iHearAll

Well-Known Member
yea your best density would be found in a triangular pattern and periodically rotating plants to increase light exposure
 
_Mango_

_Mango_

Member
Only thing I am bummed about is there was a 25 dollar discount checkout code on the site last night when I tried to order but it didnt work today. Oh well.
 
RainDan

RainDan

Well-Known Member
Hi @_Mango_

Thank you for your order - I will process a $25 refund for you to reflect the discount code since you tried to place your order prior to today - just send me a PM with your order # and I'll take care of the rest. If there is anything else I can do to assist, please feel free to let me know.

Have a good evening.

Regards,
Dan
 
_Mango_

_Mango_

Member
RainDan said:
Hi @_Mango_

Thank you for your order - I will process a $25 refund for you to reflect the discount code since you tried to place your order prior to today - just send me a PM with your order # and I'll take care of the rest. If there is anything else I can do to assist, please feel free to let me know.

Have a good evening.

Regards,
Dan
Click to expand...
Wow. Thank you so much Dan. Makes me feel loved... Or maybe it's the whisky. Can't wait for the light.
 
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