THCFarmer.com
121,252 Members Log In Register
Log In Register

DIY LED with COBs - small medium and large grows

  • Thread starter Thread starter SupraSPL
  • Start date Start date
  • Tagged users Tagged users None

DIY LED with COBs - small medium and large grows

SupraSPL 767 Replies 563,242 Views
Page 36 of 39 · Replies 701–720 of 768
#701
Ok if it's to complicated we can vote:

1. 6x3500k and special lamp for flo 2x2700k
2. 4x3500 + 2x3000 and special lamp for flo 2x2700k
3. 3x3500 + 3x3000 and special lamp for flo 2x2700k
4. 4x3500 + 2x5000k for veg and 2700k for flo; and special lamp for flo 2x2700k

The 3th option cost me more for diods, which I will not use all the time, mayby it's a waste, better run it all all the time, hmmm?
 
#702
This is how I want set lamps. The box is 110x75cm and lamps are 50cm and 25cm (midle for flo) long.
Good idea? :D


Upload 2018 2 22 16 13 16
 
#703
Paldo said:
This is how I want set lamps. The box is 110x75cm and lamps are 50cm and 25cm (midle for flo) long.
Good idea? :D


View attachment 780182
Click to expand...
i would make lamps about 70cm long instead of 50cm and center lamp 40 to 50cm long.also you are over thinking the spectrums.you want an all around good color for both veg and flower just use 3500k.and if you add those 2 x 2700k cobs to center you are good to go.
 
#704
but if 3000k will work good for veg also, I can do it like that. The best for flo but I gues no so good for veg...

Upload 2018 2 22 16 29 2
 
#705
35k 27k 35k

30k 30k

35k 27k 35k

good layout for full term growing if ya wanted to mix those 3 colors
 
#706
sixstring said:
i would make lamps about 70cm long instead of 50cm and center lamp 40 to 50cm long.also you are over thinking the spectrums.you want an all around good color for both veg and flower just use 3500k.and if you add those 2 x 2700k cobs to center you are good to go.
Click to expand...

Thanks!

Ye, that was my firs idea :) Mayby I'm thinking to much now...

About 70cm lamp: I want to do it on long radiator, 70cm radiator hard to find and to big, but I was also thinking to hang every lamp seperatly, more work with it to move each one up, but better for plants...
 
#707
sixstring said:
35k 27k 35k

30k 30k

35k 27k 35k

good layout for full term growing if ya wanted to mix those 3 colors
Click to expand...

Ye that is exacly what I'm thinking now ;) Exept change the 2700 and 3000, as the midle lamp is only for flo. But I think when the flo start I could just change it as U post it.

And by the way - for veg U will use two or one lamp? 3vs6diods?
 
#709
Paldo said:
Ye that is exacly what I'm thinking now ;) Exept change the 2700 and 3000, as the midle lamp is only for flo. But I think when the flo start I could chust change it as U post it.

And by the way - for veg U will use two or one lamp? 3vs6diods?
Click to expand...
need about 20 to 30 watts per sq foot for veg and 30 to 50 watts per square foot for flowering.
IMG 20180206 190721215

Veg room at 25w per square foot
 
#710
So I will have definitly more W, one lamp use 3000mA driver about 120W so I gues one is just enought for veg, and for flo two lamps 120W + one special for flo 60W - ye it's more then enougt :D
 
#711
ye but onather think, for veg one lamp like this will be not perfect for coverage...
another reason to make it ech diod each radiator
 
#712
And about radiator, it will be good for one diod running on 1000mA (about 75% power, they are 1600W max)


[cm]:7,7 x 6,3 x .4,2
Rezystancja termiczna : 2,4K/W
 

Attachments

  • upload_2018-2-22_17-4-2.png
    upload_2018-2-22_17-4-2.png
    56 KB · Views: 755
#713
ya know those veros can be run off damn near any drive current you choose,ya dont really want to drive them at 3000ma.for veg i like 700ma and 1050 ma.and for flower i use alot of 1400ma and 1750ma drivers.this is based on the 36v cree and 38v vero.
 
#714
I changed my mind, I will do it on 2x3000mA drivers (4diods on ech), one for veg two for flo and it will be more then enought, ech diods run on 50% - 750mA (not 1000mA). It will be better idea?
 
#717
also is radiator 7,7 x 6,3 x .4,2 cm will be enought for one CXB2530 on 750ma?
 
Page 36 of 39 · Replies 701–720 of 768
Back
Top Bottom