cobs

Currently building a light i should of built a while ago. I just have a quick question since i cant find it anywhere. How far apart do i space the heatsinks? They are the 105mm pin heatsinks from HLG. Running the cobs at 1050ma. I was thinking around a foot but im not sure. Im using ledil...

Hey guys. Ive lurked around here for a few years since green genes first cob build. I bought some 3070s a while ago and never got around to building a light because of me being too ocd to use ghetto frames and i live in a horrible place for finding things i need. Well time has come that i found...

I've got two ladies I'll be placing inside of my Grow room sometime within the week. Strains Obi Wan Og Clone, Squared Dance Clone both these clones I got from my ladies outdoors vegging. Other two are Jawa Pie and Dark Helmet. Ocean Grown seeds and one In House Genetics clone. I'll have a...

Hello all and thanks for checking out my post. I've finally been able to get all the supplies I need in order to begin my first official grow(excluding my high school experiments years and years back) and have some questions based off of my setup. I have a lot of experience in mycology and...

Hi, 1st time poster here... Pretty confused in what seems to be a hotly debated subject! Also, things seem to change by the week to add to the confusion.. Seeking some advice on what you guys would buy under the following circumstances: * 2x2x5 tent * Scrog of 3 or 4 plants * LEDs that are...

I've been lurking for awhile and I figured it's about time I made a contribution. This is a legal medical grow. I'm already almost two weeks into flower. I have 2-600 watt diy led fixtures over 2- 4x4 scrogs. This is my 3rd grow and I'm pretty enthusiastic. Help me out folks :). I'm growing...

My fellow growers, as the tech advances, more and more growers are switching to cobs. But im finding it difficult and time consuming, to go through all the pages just to find the yield. Now, that being said, i know a lot of you are going to say too many variables; its strain dependent...

I posted some pics of this light in the Microgrow forum, but I figured I would share here as well. I built this light to suit my small cabinet with interior dimensions of about 18" x 38". Using an HLG240H-C700B to power all 10 in series. 100% driver utilization! I went with the 7.984" heat...

Hey gang, how difficult would it be to swap out the chips on a light like : https://www.amazon.de/Roleadro-Pflanzenlampe-Vollspektrum-Gew%C3%A4chshaus-Wachstumslampe/dp/B01N0NQ6ZY/ref=sr_1_3?ie=UTF8&qid=1489491281&sr=8-3&keywords=roleadro to better quality chips? also what kind of chips...

If you have a request post the spectral waves and Ill crunch the numbers. So far Ive only ran the CXB 3590 3000K 90 CRI and the Luminous Generation 3 CXM-22 3000K 90 CRI as its been shown that 90 CRI produces good results (Thanks @Rahz ) I started here to see which of these would be the better...

Hey there, fellow DIYers. since the "dont know what to choose"thread is closed, i will start a new one. In here I would like to compare the new citi 6ers against Veros new 7ers. since bridgelux released 36,52& 68 V chips im a bit confused - i dont want to be spoonfed, but would like to get the...

i have a sunset sherbet clone that i vegged for about a month and has been in flower for about three and a half weeks and im getting some brown chlorotic spots on the edges of some larger fan leaves. im pretty much using jacks 321 in RO water under three cobs. i was thinking maybe magnesium but...

Hey Rollers. I've got a question for you lot. I'm thinking about building one of Cutter's Cree based Growmau5 kits. And I was wondering if it's feasible to go with a quad spectrum setup. As in 1x 6500k, 1x 5000k, 1x 3500k & 1x 2700k COB. That way I'm covering more bases. Or. Would I be better...

So this is a thread for sources ( reliable ) for COB LEDS. I have been trying to gets some citizens for a project but a " certain " source seems to be out of stock for quite awhile. Since i didn't get a response about when more stock would come in , i throw the question out there to the forum...

For the budgetary reasons it might become handy to talk about real cheap growlights. Everywhere you look at the internet the only brands talked about are Cree, Citizen and Vero. The best? Yes! Cheap? no... I fully understand that better efficiency results in lower power bills and better growth...

Hello Everyone, I have a question and hope to find some help from people with understanding better then me. Please i ask in advance you be patient with me as i may not use the right terms as i am learning. Have a 5 foot x 3 foot area for veg and grow. have been using 400 hps and 600 hps for veg...

Where are yall getting these 3D printed brackets? Or any other premade frame...I'm aware of Growmau5 open source project anyone else doing anything like that. Also feel free to post your rigs!

Want to make sure I'm getting the best combo. Whats the best Color Temp mixture for a new 12 COB fixture I want to order? -Last order of 9 COB's with dimmers I used a mix of 3500k and 4000k.

So as some of you have seen and or read I recently switched from a 2x600HPS flower to a 16 COB Cree CXB3590 grow. Comprising (12) 3500K and (4) 4000K COBs driven by 4 meanwell HLG-185H-C1400B drivers and dimmers(pots) The thread is here for some reference...

Hey folks. I have some clu046-1212s to build a Veg light or two and by Monday will have some new 058-1825s, heat sinks and drivers are on the way. Over the weekend I plan on ordering some sheet aluminium for the veg light and some angle for the 058s which are for flower tent. There are lots of...