BiG PuFFer
Well-Known Member
From what i seen other leds get about 1gpw. I get half that with hid. What cbx panel are you using?
@littlejacob DIY'ed his own panel of CXB3590 chips. He built some on individual heat sinks so he could spread them further apart.For the first half of your post i have no idea what your talking about.
Are you saying COB out preforms hid?
How is the resin production with them?
If one of the colors in the chip burns out can they be fixed at home like they advertise?
Im looking to purchase a led or cob light from an established company with proven results.
I don't really need to know all the tech and specs.
Im just a grower. I want the best light for my lights and the right spectrum and intensity.
And i need this light in the next week or two. I've heard good things about the CX-9 from Johnson lights, by the owner. I was originally intrested in the KIND 750w and I've heard good and bad stuff about that too. I just want the best bang for my buck and best light for the plants.
Is there craigslist in France?Bonjour
I have cxb 3590 and unfortunately a 600hps left...!
Unfortunately cause I don't want some anymore
Have a great day ★
If you want passive, it's possible. No lenses is frankly undesirable.i really prefer fanless led units..ie high bays..can these 3590's be run with just heat sinks..?
if so how high out put watts before its not good..
and installing no lenses
and reflectorless would allow for more heat dissapation??
There are better guys than me to get into the finer points of heat sink limits and lenses.thanks yes passive and wonder how high wattage one can run a 100 watta 3590 or if i could have two to 4 0n a 10 " unit
@ 50 w each
re lenses.. but but ..i read here[its true ..its true..i read it on the interent..]..how at least one of the resident led cool guys[compliment] are using big cree cobs sans lenses..
i am ok with lenses though..
@Rahz will surely be more than happy to explain his panels, their construction and design philosophy in detail.ye i know thanks anyway..i was just hoping to get a definitive answer
i want enought light too..i can use extra heat..
i think its too tech for meA general rule of thumb is 120 sq/cm per watt for a passive design. This is based on heat dissipated. You can determine that by using the efficiency of the cob at your chosen drive current. A CXB3590 for example at 2.1 amps will produce about 39 watts of heat and need 4680 sq/cm of heat sink surface to keep temps down in the 40s.