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hello! i am having issues with my 4x5ft closet grow room. heat in that room will get up to 32c/89f. i have the room set up with 550m3/hr (320cfm) exhaust fan. piping has 2 90 degree turns on it. filter is rated for over 650m3/hr. also there is cutout on the bottom of the door for exchange air...

hello! i would love to get some info about European led grow light retailers! i was looking to order from led-grower.eu but after i started to look at reviews from that shop and other similar named ones i got little hesitant to send them 1.4k. so if u have ordered from any European grow light...

So i bought portable ac unit and i would like to make the thing More automated and stuff. For example set timer for it same time as lights and also use the dehumidifying option of that unit, since it cant be used same time as cooling. So i was thinking if i connect arduino to the buttons so i...

So i got my hands on few led lights from one industrial building when they upgraded the inside lighting. Lights are 145w 4000k and 16500lmlm. It also says "CRI>90" i built rack for them so i can use them easily on grow tent but i just wanted to ask here some opinions acording to those specs.

I am working with 1m x 4m floor space so i was thinking if i could use 90l, 70cm x 45cm x 31cm concrete mixing bucket and use that for two plants. I could put 8 of them on the space so i could have 16 plants. Main questions is about the pros and cons about growing two plants in one?

I have extra space on my house that is 4m x 1m x 1.7m So the sealing is slanted but in widht wise the middle point is 1.7m. So i am planning on doing dwc. But the main questions i have is how many plants i should grow? and what kinda light setup would be good? I have to buy allmost everything...