light

So “more light is better” but is there a cutoff so to speak? I’ve got one plant flowering in a 30x30x60ish tent right now in a 5 gallon smart pot. I had two smaller LEDS in there (Mars reflector 96 and a no name “300w” led) but felt like there could be way more light so I swapped them out and...

I have a 2x2x4 grow box I built out of OSB. Painted the interior flat white because I didn’t want to mess with Mylar or foil or anything like that. I have 2 shop lights (65w) hanging about 4-5 inches above my plant. One has a 9w 5000k bulb and the other has a medium sized grow bulb I got from...

Hey guys, so im new to the forums! Had a little browse and seems to be alot of people here who know their shit! Anyways im just getting into this fantastic hobby and am needing some help. I currently am running 2 standard 1000w HID lights practicing my hand on a couple girls. Things seems to be...

Hello guys, thought I would share my build and ask some questions as well. I've been in the middle of building a 4'x8' grow tent with all the good stuff. Right now I'm building my first 12 3590 cob LED grow light at 640watts and 2.8 amps. I have 2 drivers... each driver is 320watts and 1.4 amps...

https://www.rollitup.org/t/anon25314s-medical-grow.991586/#post-14980832 is the link to my grow. This secret jardin dark street tent is really cool and sturdy other than the light leaks along the zipper line. What should I do about this during flowering? I keep the tent behind a dark sheet in my...

Hey guys, I have my frame and everything measured. Plan is to use x12 CXB3590 COB in a 40"x40" frame. x6 3590 at 3500k and x6 at 5000k. 2 meanwell drivers 320watts at 1.4 amps in a series of 6. It's for my grow tent which is 4'x8'. I've been searching forever and realized it's much cheaper to...

Hey guys, quick question... it has been 8 weeks and i think my buds should be bigger. Temp is between 70-80, ph of water is 6.45-6.53, light is the sunshine sky LED 180 light ($400 light), but only using it on half of my 5X5, i use 2 other cheaper lights on the other side. I use bloom hydro...

Looking to build a led strip growlight and am seeing mention of Bridgelux and different series Samsung led strips. Wondering which is best efficiency and which is best value. Are there any options besides Bridgelux and Samsung? Also, is there a better route to go then diy led light strips. Have...

Hi! I am currently running 2 sensors (inkbirds) for humidity and temp. Now I have a camera inside my grow as well. The issue here is I only have 1 cam and being that it's inside the tent, I cannot see the inkbirds. I don't want to put the sensors in my tent as I am worried about the red lights...

Ive been interested in adding UV to my grow setup as Im currently running 3000k 90 CRI COBs and am not getting much blue or uv during flowering and would like the benefits of increased potency and terpenes. What would be the best way of adding UV light to a 3x3 tent ? Ive mostly seen mentions of...

So Im getting the last few details together on my 3x3 setup and was wondering peoples opinion on whether they'd leave the COBs bare, use the LEDIL reflector, or use the LEDIL reflector ? I know a lot of people lean towards the reflector, which works perfect for 6 COBs in a 3x3, however Im...

Yesterday I suspected something wrong when my timer was to turn my lights on. Thought it was just in my head. Today i made sure to watch when the lights go off. The timer didnt turn them off, I had to manually switch it. Unfortunately I cant look into it more for the next 9 hours or so. My...

Looking into making another fixture soon as was wondering if there have been any cool developments in terms of DIY LED lighting. I was on digikey and noticed that the gen 2 bridgelux out which is sweet. apprently higher efficiency. Whats everyone else opinion on best strips to use for a build...

so my light cycle got messed up once, and one of my plants started showing pistils I’m only couple weeks into veg what do I do? Should I chop it or just leave it under the veg lights.

I'm sure your eyes are important to you... So what are you using to protect them in your room? What other types of ppe do you use? Hats? Gloves? Glasses? Rep your gear here!

Hey so last night I ate too many edible and I slept through the alarm of when I’m suppos d to turn my light on. I’m waiting for timer in the mail my old one isn’t working. I’m in veg I left lights off for like 12 hours how bad is this?

Trying to decide which to buy for a 4x4 scrog tent, any suggestions? 2x ES300 for 600 watts 1x Gavita Pro 1650 for 650 watts https://www.amazon.com/Electric-Sky-Wideband-Performance-Plant-Tuned/dp/B07CYG7718...

I'm currently working on a light for a 4x4. The goal is to get a pretty even 900-1000 µmol m-2 s-1 across the whole space running it at 500W or less. The COBs are Vero 29, 3500K 80 and 90 CRI. I took some measurements with an Apogee SQ-520 today. At 40cm distance, I get a bit over 1k in the...

Can someone help me pick out the right driver to do the following. -run 8 x qb 120s -dimmable -ability to top out at 70w per board I am a doofus when it comes to this, so thank you in advance!!!

Yes there are many many forms on here about lighting. I have read many and talked about more in other forms. My question is between $ 150-300 (Canadian) price range, what are the best lights in YOUR opinion ? Please attach the link in your comments so I can see. Much appreciated. Ps. I am...