cxb3070 3000k AD 800w draw 4x4 tent
- Thread starter Zheol
- Start date
ttystikk
Well-Known Member
My apologies, I meant the details of your light fixture. Nice setup, by the way!
Zheol
Well-Known Member
ok sorry haha its 16 cree cxb3070 3000k AD bin's from KingBrite he is awesome btw he was out of holders so he refunded me $40 so I could get them from here in the states Ideal holders 4x 42" of 5.886" Heat sink from heatsinkUSA and 4 MeanWell hlg-185h-c1400b a 50k ohm pot and 2 5.6k ohm resistors for my limiter
JimmyIndica
Well-Known Member
nice! I will be checkin ya out!
ttystikk
Well-Known Member
Excellent. I'll have to sit down with my handy dandy LED glossary and decode what you just said, lol.
Yours *actually* pulls 800W? I'm interested in building a unit that uses 2 kW.
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ttystikk
Well-Known Member
Cool! Do you have it plunged into 120 or 240V service? Since 2kW is too much for 120V circuits- at least, in my home- I'm wiring mine for 240V from jump.
ttystikk
Well-Known Member
Can you walk me thru the math on that?
JimmyIndica
Well-Known Member
CondensedPhotons= Nce fat greaszy stinky Nugs! I likey likey!Boom! That there contraption is gonna make some nice! buds
ttystikk
Well-Known Member
Thanks. That helped a lot.
EfficientWatt
Well-Known Member
Hi Zheol,
Very nice setup ! It's very similar to what I'm planning to build in a couple of months, so I love it even more
I believe you could run it passively upto about 650W reading on your killawat, at about just over 1.05A, which is already plenty
The extra 241W are for showing off 
That's why I do not plan to put fans (at first at least) on my build
So really looking forward to seeing how this goes for you, and how hard you end up pushing those AD cobs
Very nice setup ! It's very similar to what I'm planning to build in a couple of months, so I love it even more
I believe you could run it passively upto about 650W reading on your killawat, at about just over 1.05A, which is already plenty
The extra 241W are for showing off
That's why I do not plan to put fans (at first at least) on my build
So really looking forward to seeing how this goes for you, and how hard you end up pushing those AD cobs
SupraSPL
Well-Known Member
Wow very high intensity setup, nice work @Zheol ,much more light than a 1000W DE HPS in this canopy
@ttystikk
At full blast 1.4A
CXB3070 3K AD @ 1.4A = 49.8W @ 48% efficient = 23.9 PAR W
23.9 X 16 COBs = 382.5 PAR W
382.5 -10% losses to lens/reflector/scatter = 344.25 PAR W
344.25/16 ft² = 21.5 PAR W/ft²
21.5 X 4.66 umol/s/PAR W X 10.7 = 1072 PPFD.
Dimmed to .7A
CXB3070 3K AD @ .7A = 23.6W @ 55.4% efficient = 13.07 PAR W
13.07 X 16 COBs = 209.2 PAR W
209.2 -10% losses to lens/reflector/scatter = 188.3 PAR W
188.3/16 ft² = 11.77 PAR W/ft²
11.77 X 4.66 umol/s/PAR W X 10.7 = 587 PPFD.
@ttystikk
At full blast 1.4A
CXB3070 3K AD @ 1.4A = 49.8W @ 48% efficient = 23.9 PAR W
23.9 X 16 COBs = 382.5 PAR W
382.5 -10% losses to lens/reflector/scatter = 344.25 PAR W
344.25/16 ft² = 21.5 PAR W/ft²
21.5 X 4.66 umol/s/PAR W X 10.7 = 1072 PPFD.
Dimmed to .7A
CXB3070 3K AD @ .7A = 23.6W @ 55.4% efficient = 13.07 PAR W
13.07 X 16 COBs = 209.2 PAR W
209.2 -10% losses to lens/reflector/scatter = 188.3 PAR W
188.3/16 ft² = 11.77 PAR W/ft²
11.77 X 4.66 umol/s/PAR W X 10.7 = 587 PPFD.
Zheol
Well-Known Member
I can post pic as the grow goes along if you guys are interested in them
@SupraSPL thanks yah I figured I could dim for Efficiency or blast Photons if I needed never know might need to blind an alien space craft to protect humanity(LOL just kidding of course not a nutter) depending on how this grow goes it might become 2 lights
@SupraSPL thanks yah I figured I could dim for Efficiency or blast Photons if I needed never know might need to blind an alien space craft to protect humanity(LOL just kidding of course not a nutter) depending on how this grow goes it might become 2 lights
