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  1. Mullumbimby

    How much A/C?

    I'm running 1,600W home-made cob fixtures and a veg tent with about 400W of Samsung strips, plus the usual fans and pumps etc. I'm assuming an absolute max wattage of 2.4Kw on a 240v system, so about 10A of total draw. all in the same room. If I further assume a completely sealed and insulated...
  2. Mullumbimby

    Dehuey Question

    Hi Team, I'm progressing with my room to the point where I need to consider a de-humidifier. I have around 1400W of Cobs (16x 3590 and 16x Vero 29) over a space which is around 4x8 feet and I'm planning to increase this to 6x8, spread the lights a little wider and crank up the dimmers to around...
  3. Mullumbimby

    Mylar Film

    Team, I've built a grow room with two home-made 16-cob flowering arrays over 2 4x4 spaces, which consist of frames (like 4x4 tents) which hold up my lights and overhead fans. Also in the room is a 4x4 veg tent and a small table, holding my little clone/seedling tent. The flowering areas...
  4. Mullumbimby

    Cheap Lights

    Hi chums, I've built a couple of my own lights, a 16 COB CXB 3590, and a 16 COB Vero 29. They've cost me a fortune and are performing really well. If I want to build up lighting for another area (primarily for vegging), is there any possibility that these could really deliver 140 lumens/Watt...
  5. Mullumbimby

    Where's Mr Nice?

    Ordered a shedload of seeds from Mr Nice and paid (direct). Brief email from Simone, saying thanks etc but we haven't received your money. Replied with details of the transfer (including receipt from my bank). Bounced email and no sign of the Website https://www.mrnice.nl/ Has this happened...
  6. Mullumbimby

    Green leaves sprouting from my buds

    Hi Team, first-time grower here, with 700W of COBs. Four plants in a 4x4 tent, open potting mix with perlite and hand-watering. long veg and scrog. My Big Bud x White Widow are in week 6 of flowering. Up to a couple of weeks ago, everything looked sweet, I'd had few battles with spider-mites...
  7. Mullumbimby

    New LEDS

    Hi team, Last year, I made a DIY light for my 4x4 tent with 16 x CXB3590s and 4 x 200W, 1400mA dimmable drivers. I'm currently running it at about 750W at the wall and the plants and spider-mites are loving it :shock: Big thanks to Rollitup, @Growmau5 and @welight for inspiration and component...
  8. Mullumbimby

    Auto - looks ok to me but no growth for 2 weeks

    Hi team, what do you make of this? It's a feminised auto Blueberry from Spanish Seeds and is part of my first grow.[/ATTACH] It started to flower a couple of weeks ago and, since then, hasn't moved. It's in a mixture of orchid potting mix and perlite and was fed Growrite vegging nutes until...
  9. Mullumbimby

    Slow and Pale Seedlings

    Hi Guys, First-time grower here. I hope someone can recognise what's happening to my seedlings. They've been growing for nearly 2 weeks and I think they are a bit slow. There is definitely some colouration problem, with the veins of the leafs appearing darker than the majority of the leaf...
  10. Mullumbimby

    Alibaba and CXB3590

    It looks like the 'cheap' Chinese LED grow light may be moving into the 21st century: http://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=led+grow+light+cree+cxb+3590
  11. Mullumbimby

    First Scrog

    Hi Team, I'm getting ready for my first attempt at a scrog. I've got 20 square feet of space (1.4m x 1.4m) and 16 cob LEDs, I'll be using 4 plants so there will be 4 LEDs over each one. I'm planning to make 4 screens which will just fit into the space, so they'll be about a 700mm square (27")...
  12. Mullumbimby

    Soft-Drive COBs & Colour Spectrum

    Hi team, This is my first proper post and I'd like to thank everyone for the fantastic resource that this site offers, particularly GROWMAU5 and Cutter Electronics, but there have been many others who have contributed to my understanding of LED grows. There's heaps of information regarding the...
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