bassman999
Well-Known Member
I didnt even see that.
I am dumb sometimes...well most of the time maybe
Cree LED CXB3070 Powered Grow Light (9 COB)
- Thread starter 517BlckBerry
- Start date
I am dumb sometimes...well most of the time maybe
littlejacob
Well-Known Member
Bonjour
So we are dumb and dumber!!! (I am dumber...lol)
Please don't like this...
CU
Hi ive just started looking and trying to understand cobs. but wouldnt 3w leds spread more evenly and in turn be more effiecent use with spacing and such. and also cooler and i can put them closer i can make more direct light in a 4 x 4 panal with 600w worth of 3w leds
nogod_
Well-Known Member
ok so cobs are just more effiecent than normal leds but also lower wattage cobs would be also more effiecent than bigger cobs right? i want to use more but less powerful cobs for get the best equal coverage possible. i want to make a strips of cob using smaller but closerly spaced to cover a 4x4 area what type of wattage cobs are there?
Airwalker16
Well-Known Member
GOGREENLEDS.COM is the best value by far. 15% discount with "RIU15"
bassman999
Well-Known Member
Lower wattage cobs arent more efficient per se, but the lower current you drive them the more efficient they become
thats the think with cobs i dont know how to look a charts are sheets and such but i wonder if its like normal leds
1 w is more efficeient than 3w and 3w is more than 5w etc. something about running cooler and such. but also less light intensity but if you put 5 1w it would be as intense and run cooler making it more effiecent in that sense.
now are cobs in this way the same idea? in otherwords i see 100w cobs for sale and i can put 4 in a 2x2 setting but wouldnt i save money and also make it more effiecient using 12 25w cob instead of 4 100w cobs?
littlejacob
Well-Known Member
Bonjour
For a 2x2...4sq/ft you will need 4 x 30w of cxb3590...
4 cxb 3590 3500ºk 36V CD on an hlg-120-1050b would be perfect!(150w)
Or if you want more power use 4 with an hlg-185-1400b for 200w!(4x50w)
CU
For a 2x2...4sq/ft you will need 4 x 30w of cxb3590...
4 cxb 3590 3500ºk 36V CD on an hlg-120-1050b would be perfect!(150w)
Or if you want more power use 4 with an hlg-185-1400b for 200w!(4x50w)
CU
bassman999
Well-Known Member
There arent any 25w cobs that I am aware of that are very efficient.
Efficiency is the reason to switch to led cob lighting.
You will not run the 100w cobs at full power, but maybe 50 watts each and in the case of the CXB3590 it will be 56% efficient and have good spread with 200 watts or 112par watts
sounds good how do you think it will work if i make 8 of these to cover a 4x8 area of canopy is that equivelent to 2 1000 hps?
or 16 of them to cover an 8x8
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Airwalker16
Well-Known Member
Dude 32 CXB3590S in a 4x8 KILLS 2,000W Hps.
ok so with 4 of those or 16 cxb 3590s in a 4x4 will equal 600watts and it will blow away 1000watts? has anyone tried a set up like this 4x4 space 16 3590s can that yield 2lbs?
bassman999
Well-Known Member
1000watt hps is under 40% efficient, but the CXB3590 at 1.4A is over 56% efficient
That makes it 40 more efficient, but with better spectrum and less thermal dissipation
Less heat allows closer placement and the result is denser buds.
The spaced cobs verses the single hps gives a more even canopy of light for less larf on the edges
2cent
Well-Known Member
Airwalker16
Well-Known Member
Ya if you're gonna be spending major coin, you should make your own. There's a video on YouTube from greensanta that literally, step by step shows you how. You can make a light with 20-28 cxB3590's rather than 3070's. But if you're not technically inclined, DEFINITELY get a TastyLed. That's what you're wanting.
im taking a look at it. but cost wise seems like a bad idea for large grows. too much start up
Airwalker16
Well-Known Member
No. 216W from the wall.