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This convo caught my attention and i started looking at "full spectrum led cobs" and I found these... https://www.aliexpress.com/item/High-Power-LED-Chip-Full-Spectrum-LED-Grow-Light-1W-3W-5W-10W-20W-30W-50W/32795576298.html?spm=2114.40010308.4.65.37nbvp Im probably making a tit of myself...

Awesome, thanks for the replies! Ok so I need some water crystals...I'll be using a pre-mixed soil from one of the nute companies which has worm castings and so on. I was also thinking about adding some coco for aeration/drainage, does that make sense? Also, what would you advise for...

Hiya Having discovered that the soil in the forest where i wanna grow is a) thick clay soil and b) riddled with roots from nearby trees I think im gonna have to use grow bags instead. Obviously the bigger the better, but im wondering if 10 gallon bags are simply too small...can anyone tell me if...

Cheers GB, much appreciated. Just had a look at the Kingbrite page and wow, there's a lot of different cobs...are people going for the 3 - 3500k range? What about CRI? I have built a nice small set up with 4 cxa2530s (fasttech have them super cheap at $10 a pop) which works well but still have a...

Gbauto, Im curious about Cree alternatives, could you please provide links to the Vero/Citizen cobs you mentioned? How many mA are you pumping through them? Cheers!!

Ok, I spoke to another guy and he recommended the Canna nutes, they have them in stock at a reasonable price so ill go with them I reckon. Cheers!!

Cheers for the answers guys...yeah normally i do a lot of online ordering but the shipping charges around here (central Europe) are crazy...eg GH Trio pack (3 x 1L) €37, shipping €20! Ive been thinking about this: http://www.growshop.at/index.php/nahrung/hesi/hesi-startpaket-hydro.html It has a...

Cheers, thats not available at my local shop though! They stock Advanced Nutrients, Advanced Hydroponics, Atami, Bio Bizz, Hesi and a few others...

Hiy'all Im just getting ready to start a first DWC and Im just wondering what nutes everyone is using...? The dude in the shop said bio nutes are a bad idea in hydro systems but I didnt catch exactly why this is. I found an Advanced Hydroponics starter box which i was gonna pick up today. The...

Dionysus, I had that on order but it was "restocking" - they couldnt tell me when they'd be getting restocked. Mazer, may or may not be of interest to you but i found these at a good price and only €7.50 shipping to the country i live in (mainland Europe)...

Yeah Mazar but its $10 delivery and your probably looking at 3 weeks delivery time...googling brought me to these pin fin units which seem reasonably priced, probably perform very well and yes a €10 but id expect shipping times to be fairly good...

Hey guys, Hope youre all keeping well! CXA2530s should be here any day now but man, having a right headache trying to get heatsinks on a budget (really chose the wrong time to start a grow as im flat-out skint at the mo!) How do you reckon this would cope with the 2530 @ 350mA...passively...

A few lens reflectors for bike lights but nothing for what we're up to! I'll probably get 4 of these, one for each 2530: http://www.leddna.com/10w-aluminium-heatsink-for-high-power-led-bulb/ 90mm diameter so fairly large compared to the led but they appear to have large surface area and fingers...

Hiya Mazer Maybe something from these guys? http://www.leddna.com/aluminium-heat-sink/

Hi Mazar If it makes you feel any better, im in a similar boat! Have you seen what fasttech have? Something like this? https://www.fasttech.com/p/1348405. I did have these on order but it was listed as "restocking" and was holding the order up so i cancelled it. I doubt 3 cobs on there would...

Hiya JG, Thanks, thats good to know. I appreciate all your help here, everyone, Will, JG, Gowmau5, many thanks. So now the waiting begins! I have some outdoor stuff to keep me busy, need to order the beans for that. And I have a design for another light which im working through - its a bit OTT...

Cheers JG, i'll look into that a bit more. Just out of curiosity, what (similar) efficiency % are people with the big 3590 builds aiming for? Thanks!

Ok cool, thanks for that JG. About the efficiency, 4 x 12w on a 70w driver is around 70% load and from the chart you kindly posted a few pages ago from the MW datasheet, that comes out at almost 90% efficiency...obviously im doing something wrong to end up with that! Came across these diddy...

Cheers JG, yes hopefully the dimming will be worth it. As there'll only be one little, lonely chick in my cab I guess full light output wont be necessary from the off! Im going with the heatsinks Dionysis recommended - https://www.fasttech.com/p/1348405 I can cut these in half giving a 50 x 50 x...