spectrum

  1. DeVille

    18000 Kelvin for rooting clones?

    Needed a T8 for cloning, so bought the closest I found to a usable spectrum in a local electronics shop. 4000 kelvin. Not optimal, but I know it works. I see the local pet shop sells a bulb for aquariums, but that one is 18000 kelvin - Do you think it would work well for rooting`clones? I have...
  2. smokejoint

    Which CFL light will be good?

    Hi guys, forgive me its maybe a stupid question but i want to grow indoors with a CFL bulb (200W) and i dont know which bulb to choose. Can i use a Flowering spectrum CFL also for the growth phase? I dont want to buy one CFL for growth phase and another one for flowering phase. Or what about a...
  3. M

    How low on watts can you go on Cree 3590's

    I have a couple of questions. I bought two 3590 s @ 3500 k and run them at 50 watts with a mover that moves 2 feet and height adjustment (active heatsinks). I put both up to 60 watts each and burned some leaves. I have now a 3+3 space with one big plant (smaller footprint when plant is young) ...
  4. B

    Are these better lighting options than what I have now?

    I have been using a 400w MH HID to veg for years. would one of these be just as good or better than my MH 400 in a 3x3 area? or any other ideas that might come to mind. Bout $200 or under hopefully is what i can do. Thank you very much for your help 100 Watt Citizen CLU048 (2) COB Grow Light...
  5. 4

    What light spectrum should I use?

    Hi so I'm growing some star dog clones and they're in 10 gal or 7 gal pots. I transplanted them last week from a 1gal and they were pre flowering. It is now a week later now they are put into flower, and I watered with a tea and induced flowering with insect grass and foliar the same as the...
  6. G

    How much THC in those plants? 3 lights 3 results

    Here's some real testing of 3 lights. 400 watt Spectrum King (LED), 315 watt CMH (LEC), and a 750 watt GAVITA. This guy is constantly growing plants. He seems to like Spectrum King lights because of the lower heat and terpines. He also likes the resin and efficiency of the LEC. Enjoy.
  7. H

    Need Help With LED's

    Hello Everyone, Thanks for reading this! I've got a small space of 2x2 ft = 4 sq.ft, and I have a doubt regarding the lighting. I've read in multiple threads that 30-40watts per sq.ft should be adequate, and i'd love it if some of you could confirm that? for example if i'm considering...
  8. B

    Help choice of HPS or LED

    Hey Question. Trying to decide between 600watts hps Phatnam 2 by Hydro Farm or Spectrum king led 400+ and Gorilla grow tents?
  9. K

    New to indoor grow

    i have a 48x24x48 grow tent. what size led full spectrum should i use. i was thinking about getting 2-300watt full spectrum led grow lights but i aint to sure. please help.
  10. Fullyspectrum

    Help needed - DIY COB light - What driver?

    Hi guys first time playing with COB'S and I have no idea what driver to use. Will have to do more research, but wondering if anyone can point me in right direction for a driver to run 2 x 10w chips. Details below. 10w led grow Light chip full spectrum 380~840nm for hydroponics veg flower...
  11. B

    Hello everyone - New to the site - Excited to be here

    Mars Reflector144 Led Grow Light Full Spectrum Panel Veg Flower Plant Hydro 298W
  12. coralman

    Temp and humidity relationship

    Am i right in thinking if i raise the humidity in my tent it will lower the temp? Was currently at 22-25 degrees with 50-60% rh in a 5x5 on 750watts dual spectrum, i have knocked it up to 1000watts and now im gettin 27-31degrees with 30-37%rh
  13. S

    LED for 3x3 current sale pricing - Help please and thanks!

    Hello! I'm looking for a LED for a 3 x 3 tent. Penetration is probably most important. Looking for best spectrum and results near a 400 to 600 watt hps. Mars II 900 (10% off today) about 450.00 cdn Epistar pro II 160 (20% off monday) 400.00 cdn I've been checking out the Perfect Sun 500. It...
  14. Zogrowsgreen

    Light Experiment Suggestions - 1200 Watts - 5x5 I need help! Mars Hydro LEDs & T5

    Hello All, I need help with figuring out my light spectrum for veg/bloom with my current light setup to make sure i am not doing more harm than good by mixing the led spectrum and T5. The plan is to keep the plants short and Run 4 Mars hydro Reflector 96 units (rectangular) around the 4 sides...
  15. K

    CFL dual spectrum bulb

    Cfl dual spectrum bulb for my grow from start to finish or do I need to change before flower stage
  16. H

    LED Bar Grow Lights Hot Sale

    Key benefits :thumb::thumb::thumb::thumb::thumb::thumb::thumb::thumb::thumb: • Controlled, uniform, high-quality (young) plant output • Proven for different growth characteristics, including full spectrum versions • Less heat radiation, so ideal for conditioned environments • Ideal for...
  17. B

    LED Closet Case Grow

    hi guys and gals and :welcome: to my journal. I'm going to run 4 regular blackout kush (og kush x g13) plants under a led 100 watt grow light. this 100 watt led grow light is actually brighter than my 150 watt hps grow light and it emits nice full spectrum light like the sun. day 1:
  18. A

    Using 2 kinds of lighting? H.I.D.

    Is it more beneficial to run both, MH and HPS at once? i have both ran thru hoods so staying cool isnt issue,just didnt know if the diff. lighting spectrum would trick my young plants into flower as their only 2 weeks from sprout.. thank you M.H- 1000 watts H.P.S.- 600 watts+super lumens...
  19. Emilya

    Have you seen what Hortilux has done with T5s!

    Oh my... Please add a bunch of these to my wish list. At almost $30 USD per bulb, compared to $6 for plain T5s, these had better be all they are cracked up to be... and if my presently owned and operating Hortilux Blue Eye Metal Halide bulb is any indication, they will be. Here is the...
  20. D

    Question about LED and spectrum

    :welcome: Hello All, I a'm Davano and i a'm thinking about starting my own grow. I would like to grow under a led light, but there really expensive. Now i saw this on youtube: 96w DIY LED Grow Light - How to build it for $57 - YouTube and have some questions about it. First and for-most...