Search results

  1. J

    Greenhouse probs

    I'm growing Baobabs
  2. J

    Greenhouse probs

    An automated greenhouse that uses 0 electricity is my goal. My being lazy I don't see myself opening the 8 windows and door in the morning and shutting them at night. Half the time I won't be around and being up at 8am isn't something my night owl person can do. If my life depended on it then...
  3. J

    Greenhouse probs

    I bought a 7x7x15 greenhouse with some standard 6mil poly film for $100. I live in southern california and currently have all the vents and door open to keep the temps 90* or lower. My main concern is keeping night temps up but closing all the vents at dusk and opening them at sunrise is just...
  4. J

    Exhaust Fan Temp Control

    I have an S&P TD-100 for my exhaust in a 4x4. Temps too low in winter, especially night temps. I have considered buying a hyper fan 6" but but if you really want the temperature control you have to spend $240. I've already spend money on my current fan that I up till now have liked. I'm just...
  5. J

    Cheap and Cheerful DIY using Citizen cobs

    The extra weighs 65g more and has four spots to attach m4 screws along with all the m3 screws. The standard 9980 heat sink uses only m3 screws. Dimensionaly they are the same as well as thermally (rated to 48.9 watts). The charts even show the same temperature curve for total dissipated watts...
  6. J

    Cheap and Cheerful DIY using Citizen cobs

    4x4 but I'm only really using 4x3 of it. Trying to get my light spacing right...
  7. J

    Cheap and Cheerful DIY using Citizen cobs

    I've been a lurker for a long time. Started watching @Growmau5 videos about a year ago. Great inspiration. Then I saw the build by Jorge on the front page of this thread and wanted to build something similar. I built a light using four CLU048-1212C4-403M2K1 cobs Moduled 9980-B heatsinks...
Top