Introducing CobKits.com - specializing in DIY and Citizen COBs
pop22
Well-Known Member
NGL had a frame like this one:
I have this. I removed the lenses seemed all they did was store heat....
I have this. I removed the lenses seemed all they did was store heat....
Anymore of the CXM 22 light engines on $33 special available ?
ChaosHunter
Well-Known Member
That spacing looks perfect for a 2x2. I consult a few vets and sick people on how to grow there own meds. My biggest hurdle is lighting in that I need a reliable source for parts. I'm the first to promote the Quantums but if I can't get them reliably then I have to look elcwhere and COBs are proven.
pop22
Well-Known Member
Yes, I use both. I also have some cobkits active light engines with citi 1825. and a couple of cobshop's autocobs. Gives us flexibility!
Go go n chill
Well-Known Member
CobKits
Well-Known Member
yes the site inventory is accurate, best to check there first as were getting down to the last and a bunch got sold before i saw your post.
DesertHydro
Well-Known Member
got some more goodies to build a few individual light engines to place over plants that werent getting enough love. made four cxm22s thatll get about 60w each to help the inners on some of my trees
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DesertHydro
Well-Known Member
my CXM22s pull their weight. pun intended. im happy with them and my budget 1212s by the case. if youre not pushing them too hard they stay pretty efficient.
just a thought as the cxm22s are 33 per light engine on some of them which is a hell of a deal.
CobKits
Well-Known Member
heatsinks? only 133 mm from here on out
Go go n chill
Well-Known Member
Running at 1400ma.... They are just warm. My 4 cxm build puts off better light than my Vipar and Mars together! With less heat
DesertHydro
Well-Known Member
just need to wire this bitch up! ready to slay it in the test tent
CobKits
Well-Known Member
They adjust MAX output voltage and current for the driver. doesnt mean you will be operating at max voltage or current, the array has to be able to operate in those parameters. for example, on an hlg185-48A which has about 4A, max voltage is about 53.5V so if you put one ~50V cob on there that is 100W at that voltage, or ~2A. so regardless if you crank up Io, you wont get over 2A
likewise, if you have a cob array on there that maxes out the drivers current at 52V, turning Vo all the way up stil wont deliver over 52V
the driver, like the COBs, can only operate on the voltage/current profiles in their datasheets
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Humanrob
Well-Known Member
Those are some massive angles you are using! What size space will this light cover, and how many watts per cob?
Humanrob
Well-Known Member
Thanks for the response. I don't know much at all about electricity, never wrapped my brain around volts/amps/watts. All I know is that when I have a Kill-O-Watt meter hooked up and I play with the adjustments, both can impact the final watt output. I should have just asked which you recommend using to dial the light up or down?
CobKits
Well-Known Member
if your plants can take it, and your heatsinks are sized appropriately, crank it up
DesertHydro
Well-Known Member
this will easily do a 4x4. half of the test tent(4x
will be this light set to 630 watts at the wall or whatever the 630w DE CMH 3K-R hits at the plug. not gonna divide the tent up with a barrier so it wont be a true side by side even comparison but it should be close enough to get an idea if the results are way askew in one direction. taking votes on which side will win
gonna try and divide up the clones as easy as possible.
The frame is 1" angle in .125(1/8") aluminum. normally i run lower wattage(37-50w) and 1 per sqft but this was a fuck around experiment and didnt wanna buy too much more shit and work with what i had. these will be somewhere between 60-65ish.