Lights

Talk here about what lights are best to use for your grow.

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  1. Dr.Autoflower
    Sticky

    How hot does a 250w cfl get

    Dr.Autoflower, Feb 25, 2011 ... 2 3 4
    Replies:
    65
    Views:
    27,807
    SmokeRich211
    Aug 14, 2019
  2. DonJones
    Sticky

    Light Spectrum Chart

    DonJones, Jun 22, 2009 ... 2
    Replies:
    20
    Views:
    24,658
    SmokeRich211
    Aug 14, 2019
  3. camcam
    Sticky

    Light Information

    camcam, Jun 21, 2008 ... 2
    Replies:
    30
    Views:
    19,047
    Alexphillips
    Mar 17, 2019
  4. ozzydiodude
    Sticky

    Light & Photosynthesis

    ozzydiodude, Jul 8, 2012
    Replies:
    6
    Views:
    8,432
    johnlevy
    Dec 28, 2017
  5. Kupunakane
    Sticky

    Let's help each other's Electric bill

    Kupunakane, Aug 6, 2007 ... 6 7 8
    Replies:
    155
    Views:
    41,847
    Michael94
    Feb 26, 2015
  6. Mutt
    Locked Sticky

    GrowFAQ-Florous

    Mutt, Mar 2, 2006
    Replies:
    5
    Views:
    16,874
    lisa
    Nov 20, 2008
  7. Mutt
    Locked Sticky

    HID light Operation cost Calculator

    Mutt, Mar 2, 2006
    Replies:
    6
    Views:
    13,727
    N1XON™
    Jun 12, 2008
  8. Mutt
    Locked Sticky

    GrowFAQ-Lighting-Basics

    Mutt, Mar 2, 2006
    Replies:
    3
    Views:
    26,894
    Mutt
    Mar 2, 2006
  9. automatic
    Locked Sticky

    Clarifying one of the great mysteries of gardening.

    automatic, Apr 5, 2005
    Replies:
    2
    Views:
    19,967
    joe blow
    Apr 5, 2005
  10. oldfogey8

    Source(s) for DIY LED build?

    oldfogey8, Dec 8, 2019 at 11:20 PM
    Replies:
    17
    Views:
    131
    oldfogey8
    Dec 9, 2019 at 6:38 PM
  11. Lesso

    Lights for 5x5 coverage

    Lesso, Sep 28, 2019 ... 2 3
    Replies:
    46
    Views:
    1,306
    oldfogey8
    Dec 9, 2019 at 12:35 PM
  12. Sunny Jans

    what kind of led grow lights are you using now?

    Sunny Jans, Jan 11, 2019 ... 2 3 4
    Replies:
    68
    Views:
    2,924
    Ganja_Greg
    Dec 4, 2019 at 2:51 AM
  13. cincy boy

    Ballast ?

    cincy boy, Mar 16, 2005
    Replies:
    4
    Views:
    2,553
    burnin1
    Nov 21, 2019
  14. Mart17

    Mars II 400

    Mart17, Oct 6, 2015
    Replies:
    10
    Views:
    1,575
    SmokeRich211
    Nov 17, 2019
  15. techrons78

    mars 2 full spec

    techrons78, Feb 26, 2015
    Replies:
    4
    Views:
    1,122
    Bruce111
    Nov 13, 2019
  16. The Hemp Goddess

    Mars II 300W vs Mars II 400W

    The Hemp Goddess, Apr 27, 2015 ... 3 4 5
    Replies:
    94
    Views:
    8,496
    Bruce111
    Nov 13, 2019
  17. stonedwoodsman

    How much do Grow Lights cost to run?

    stonedwoodsman, Sep 5, 2019
    Replies:
    6
    Views:
    230
    Bruce111
    Oct 14, 2019
  18. Mick

    Can inline fans handle 2 cooltubes at once?

    Mick, Oct 8, 2019
    Replies:
    9
    Views:
    99
    Mick
    Oct 8, 2019
  19. JoseyWales

    King LED 1200W LED full spectrum Veg and flower

    JoseyWales, Sep 18, 2019 ... 2 3
    Replies:
    43
    Views:
    753
    Bruce111
    Sep 30, 2019
  20. QBCrocket

    Making the vispectra 400 work

    QBCrocket, Aug 7, 2019
    Replies:
    11
    Views:
    340
    Bruce111
    Sep 27, 2019
  21. MJ20

    LED or HID?

    MJ20, Sep 6, 2019 ... 2
    Replies:
    22
    Views:
    578
    Bruce111
    Sep 27, 2019
  22. Rickybkush

    Which COB grow lights are best.

    Rickybkush, May 5, 2019
    Replies:
    7
    Views:
    386
    Rickybkush
    Aug 7, 2019
  23. burnin1

    Cheap LED Grow Lights (Vander)

    burnin1, Feb 25, 2019
    Replies:
    18
    Views:
    1,173
    giggy
    Jul 29, 2019
  24. QBCrocket

    Gavita

    QBCrocket, Jul 14, 2019
    Replies:
    2
    Views:
    140
    QBCrocket
    Jul 29, 2019
  25. dytnasty

    How do I go about selecting lighting

    dytnasty, Jun 20, 2019
    Replies:
    3
    Views:
    225
    Devile
    Jul 29, 2019
  26. oldfogey8

    DIY LED or buy pre-made

    oldfogey8, Jun 29, 2019
    Replies:
    6
    Views:
    289
    cannabisismylife
    Jul 19, 2019
  27. stepheneking

    HID to LED to CFL wattage cross reference for new ones??

    stepheneking, May 14, 2019
    Replies:
    0
    Views:
    117
    stepheneking
    May 14, 2019
  28. The Poet

    Cure for smaller crops...

    The Poet, May 11, 2019
    Replies:
    0
    Views:
    148
    The Poet
    May 11, 2019
  29. QBCrocket

    perpetual grow light

    QBCrocket, Apr 30, 2019
    Replies:
    2
    Views:
    222
    QBCrocket
    May 9, 2019
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