Introducing CobKits.com - specializing in DIY and Citizen COBs

CobKits

Well-Known Member
you mean blue cobs, or blue-ish cobs?

i have luminus in 4000k 80

if you want pure blue i only have those in 1212, you could run them off the same driver but not at the same time as the cxm22s
 

kaivorth

Active Member
I'm fighting low humidity and cold weather right now. Temps at 61F

I have a vornado humidifier and an oil filled electric heater, but I'm pretty sure they're just going to fight each other.

Suggestions for this closet grow?
 

CobKits

Well-Known Member
temp more important than humidity imo. if you restrict the air circulation, that humidity will rise in a closed space and solve both problems. more lights will also add more heat.
 

nevergoodenuf

Well-Known Member
I'm fighting low humidity and cold weather right now. Temps at 61F

I have a vornado humidifier and an oil filled electric heater, but I'm pretty sure they're just going to fight each other.

Suggestions for this closet grow?
Try hanging a wet towel by the heater with a fan blowing on it. This should raise the humidity some.
 

kaivorth

Active Member
Try hanging a wet towel by the heater with a fan blowing on it. This should raise the humidity some.
Seems to be helping.

What about putting a submersible water heater in the vornado? So It's evaporating warm water instead of cold? Think this would help too?
 
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SPARC

Member
Big thanks to @CobKits for his awesome service! I placed an order for some 1818s around noon on Saturday and he got them shipped out and on the way to me within a few hours. I'm going to be putting the 1818s along with some CXM22s on several frames that I designed and cut last week. I'll upload pics once they're done but here's the render I did of the frames.

The 6 COB will be 1818s with dual 185h-48a drivers. The 3 COB will be CXM22s with a single 185h-48a.

Flat_3COB_V3_Bare.png
Flat_3COB_V3_2.png
Flat_6COB_V6.png
 

pop22

Well-Known Member
I gave up fighting low humidity and I've seen no detriment doing so. humidifiers, etc create zones of very high humidity, which in flower can be bad. I'd rather be uniformly dry, the plants will drink what they need.

I'm fighting low humidity and cold weather right now. Temps at 61F

I have a vornado humidifier and an oil filled electric heater, but I'm pretty sure they're just going to fight each other.

Suggestions for this closet grow?
 

CobKits

Well-Known Member
updated inventory for assembled luminus light engines

http://cobkits.com/product-category/light-engines/luminus-light-engines/

in stock ready to ship:
120mm:
3000k 80cri BJB holders
3000k 90cri BJB holders
3500k 90cri BJB holders
3500k 90cri Ideal holders

133mm: http://cobkits.com/product/cxm22-passive-light-engine-133mm/
3000k 90cri Ideal holders
3500k 80cri Ideal holders
3500k 90cri Ideal holders

all other combos of 3000k/3500k in 80/90cri (and 4000k 80 cri) are avaialble for special order allow one week for shipping
 

pop22

Well-Known Member
too vague. Are you talking a pre-built retail light, or a diy? If retail, most, ( non - Chinese... ) retailers will tell you who's chips they use. There's not one Chinese made cob light I'd even look at, not to say buy....

DIY? Buy quality parts and don't even worry. Whens the last time you've seen a post about someone getting bad Cree, Citizen, or Brideglux chips. I bet the Luminous chips are reliable too, or cobkits wouldn't sell them. Buy quality parts and you'll have a light equal to any high-end commercial light.

How can I determine if my cob build is well built ? I don't want to spend hundred £ on a spectrometer.
 

pepechang

Member
perfect, i am going to buy an MW driver here in Arg. ,model : hlg-240-h-c700a( i cant get any driver of more mA) , was thinking of 6x luminus cxm22 3500k 90cri, or 6x citizen 048-1818 90cri , plus the 6x Ideal holders and the 6x thermal pads, all with active cooling.
Do you think this could be a good choice?
Cya!
 
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