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It ' s strange to me see a cobs grow guru like you asking a so "simple" (not for me!!)question...sorry for OT!!! PS What about add an UV B and UV A reptil neon as AMARe's style to my lamp (5 cobs-250W max citi 3500k 1212 COB) ? I mean what kind of bulb may you reccomend me and how much time...

Sorry, what no phosppr means? Is it not a COB?

Wonderful 3d!

Unfortunately I can't open any windows during main time of the day and yes, exhaust blow the air back in a tiny room temperature is currently quite warm 72-83 °F.. At the evening i can open the windows in the adjacent room, not in the tiny. Anyway there is not a good air circulation outside...

Hi HydoDan, which is your tent size? As I wrote before mine is 2.29 feet. And as you know my 1212 put out less photones than your CXB. Do you think I have just to try? I read that plant could stop to grow if i give too much light and needing more CO2...But i do not know if it still continue...

Hi, sorry for m insistence but I need to be sure about putting my 5 COBs at full power(ish 250w) without CO2 Could i try and just see if all goes on ok? Currently I'm at 10 days from 12/12.

Thanx for your answer HotBunz! Is any other users disagree ?! Plants are four (2 mostly indica and 2 fast sariva) with SCROG NET.. About coco that's my first time. I had some troubles in the first weeks but right now it seems to go really good 50%coco50%perlite with simil smart pots. I like...

Hi! , Does "blow" means "explosion"? Is it a good thing or bad? About tent "roof"I' m going to scrogging in small pots (1.5 gal) and full coco... What about CO2 issue in your opinion?

Hello Bobby. Temperature is now between 22 and 26 °C (71.6 and 72.8°F) but will increase in the next weeks. I' ve an inline fan (107 m3/h) for air inlet and one dual speed air extractor(145-187 m3/h)with odor sock filter for outlet. I've got also a smal circ fan hang above the colas. Tent is...

Sorry..2.29 are foots...0,70x0,70x1.60 meters

Hello, I have 5 citizen 1212 in my 2,29x2,29x5,25 tent, 245W ish at full power(260W from wall measure by a kill a watt) Vegetative stage just finished at 100W, now it's time to switch and an expert COB grower told me to do not exceed 200W in blooming stage because over this power amount I'd...

Thanx man!!

I choose a pot with switch included. I did not find any different between 100% pot and the open circuit ..was a 4 dollars pot from mouser...Iwas lucky, isn t it?

Thats really strange, first time i read pot could influence the actual driver output. Maybe Metacanna has the same your problems..I d realy like to understand why that happen...do you have any idea?

Hi, thanx you too. I'm little afraid touchig wire by end even if at a low voltage. Hoe many battery should i used in series in your opinion? Maybe I've a low voltage charger for old mobile phones ...but as i asket to Bobby i do not know the right value of that.

Thanx so much for your answer!! I m going to do this test! What voltage/amperes amount would you raccomand me for this test on 5 cobs?

My 5pcs 1212 draw 260w from wall, drived by a hlg-240h-c1400B considering a 94% driver efficiency at full power your test seems different from mine..my 1212 should run at 48.8w each oneatfull power.

Hi Bobby, actually all of my five 1212 may be in the same situation(some seconds plugged unmounted from any heatsink or fan), I've got a cheaperdigital luxmeter but because all cobs could be damaged i think would be useles, is there any test could I do to be sure my cobs are at there 100% of...

Hi, what ona jar size? Thx!

hello I did something of very stupid. I tested my 1212 cob before applying them on the heat sink. after about 10 seconds backlighting i saw some smoke from COBS...of course i ready unplugged the power, the cobs were quite hot to the touch. Do i irreparabily damaged their efficiency and factory...