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At what point to take clones of clones: how long must you wait or even at all? I know you have to wait for a few weeks a month in order to take clones of a seed planted plant, basicly wait until it shows sex. But in the case of clones from a clone (which already showed sex) how long should...

Automation people: can anyone advice me of such a device: - programmable humistat controlled relay with 2 separate relays -reliable - local logic; does not need to be connected to the cloud or wifi in order to trigger the switch. - from the box functionality; no special programming on rasberry...

Has anyone got any recommendations for this strain bank for something with both old school and comercial appeal? Yieldy, smelly and less than 10 weeks flower time. All options and opinions considered :)

So these just arrived today! @Grow Lights Australia and @Prawn Connery graciously offered these for some testing and i decided to pick up another bunch of them just in case. First impressions: - GLA was really easy and nice to deal with. Always a pleasure to deal with companies born out of...

Hi everybody. As for anybody in a red state context: what precautions do you do or think a pertinent when posting pics of your grow? Especially for social media. Lets say we wanted to be extra careful and paranoid... I know about removing metadata from your pics done on your phone but im also...

Does anyone have a good and cost effective solution and for measuring DC voltage/amps/watts that connects to either your phone/tablet, google home assistant or arduino/esp32? Im looking at setting up separate trays with individual control of far red and uv and i want something that can measure...

Does anyone want to share their experiences or talk about what hosting refugees as a private citizen is like? What are your motivations, what was the event that pushed you over the line? What piece of knowledge do you wish you had before taking people in?

https://news.samsung.com/global/samsungs-new-mid-power-led-integrates-unsurpassed-light-efficacy-with-outstanding-color-quality New chip, doesn't seem like it's available yet. The blurb talks about color rendering and higher efficacy, up to 235lum/w, new reflector in the case and more efficient...

Announced in their web, no datasheets as of yet. Id expect discounts on gen 7 thru digi...

https://edition.cnn.com/2020/02/03/us/cannabis-weed-compound-30-times-more-powerful-than-thc-scn/index.html Anyone with more knowledge about this?

As per title does anyone know anything on this strain? My growbuddy just picked supposedly elite clones so any info would be appreciated

I still dont get why we arent seeing more of these, has anybody built a light or included these in their build? Especially keen on seeing those 5050 high power diodes applied.

Basicly im trying to figure out if i can use the DC - current from an array of solar panels to power a led driver. Normally a solar installation has batteries and an inverter to transform the power to AC. As led already runs on DC i wanna bypass batteries and inverter to power the driver...

Anybody using these? They say they are ultra ph stable also it looks like they have easy distribution in the EU, not only states.

Is there any dwc system sold internationally which includes a cooler? If no, what systems are rec for dwc? Im in EU region

Supposedly arriving soon as per @mr. Amsterdam so it needs a thread for reference. 90 cri versions aswell, like we seen on bridgelux vesta.

Looking for solutions... Need a pump that can sit outside the res so it doesnt heat it up. Doesnt need to be insanely strong, it will be responsible of making a waterfall effect to oxygenate the res. Anyd ideas?

Ao anyone knows tye difference between meanwell HLG series and the HEP- series? Saw a HEP-480-54A at arrow and lo and behold its a bit more expensive than the hlg, is there an added value to going with the HEP-480?

Anyone tried infrared led supplementation, hopefully in some kinda side-by-side? Im talking of real infrared, 850/950 nm, not far red, 730 nm. Ive seen annectodal talk about helping flowering or budset. I also seem to remember @Growmau5 using a few infra red diodes on one of his DIY fixtures...

Not really a led related question but offering it here cause this where theres more knowledge on gear.... Does anyone know of a brand of thermometer/RH meter that calculates and displays VPD/vapor pressure deficit? Links?