Oldmateslim
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Awesome thanks for the reply, I have looked into cobs and definitely will look a bit more into them when I upgrade, I have found so far that the burples are decent and quite good for veg but in flower they do lack what hps have , what cobs are you running? Id love something that i can see the plants actual colors
I'm running three 100w Cree CXB3590 3500k in two fixtures (x1 & x2). My single is fixed at 65w and the x2 is dimmable. Make sure whatever COB you buy is dimmable. They put out way way too much light for a 4x2 tent. At 8-10" the x2 alone is providing a PAR of 216DLI (24hr period). The girls only need 66DLI max, and only that high with CO2 gennnys. I run mine at only 70% 12/12 and get about 70-75DLI. Probably should decrease even further but my tent is outside so they get plenty of CO2. If you go with COBs, IMO, run CXBs because the don't lose their efficiency when dimmed <70%. Example, Bridgelux Vero29 are excellent lights and are comparable to COBs at full power, but lose that efficiency when dimmed to <70%. My fixtures are CF Grow by ShenZhen and cost about $150 per 100w COB on Amazon, $75-$100 per COB direct from China through Alibaba. There are many types of COB arrays, some using as small as 30w lights. A Black Sun array with x9 30w is only $200-$300 direct from China (on Amazon the x6 is $325, x9 is $490) and is super efficient due to passive cooling. COBs have become a very inexpensive and effective option. 3500k can run from seed to harvest with a good dimmer.
You should look into Quantum Boards as well. Concentrated COBs are cheaper but QBs are around 15% more efficient. Again, make sure they have dimmers. QBs generally run passive cooling (heatsink only, no fans) but I personally like the air circulation and ventilation assistance I get from the active cooling on my CXBs.
New model CF Grow 100w(200w total) CXB3590 x2 with digital temp control and readout...
View attachment 849979
...about $200 direct from ShenZhen through Alibaba. Don't let the price and Chinese mfg fool ya, these are excellent, well built lights.
Legend, yeah thats about the same as the blurples run you! Im all for trying something new. Thanks heaps mate
Can you show me a full plant pic of the gc?I think ill start the flush in about 5 or 6 days but ill see how they look under the scope
Thanks!Can do when i get home mate
Can you show me a full plant pic of the gc?
Awesome job man! I’m ready see mine flowerHere ya go mate sorry about the late reply, busy days.
Both plants
GC
PAK
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