PDA

View Full Version : Lighting and Ventilation


  1. Humidity problems please help ..!
  2. Odour control on the cheap!
  3. calculate: -how much your lights cost to operate....
  4. DJ Short: On Lighting
  5. Data On Commonly Available Fluorescent Tubes
  6. help me build a cool tube
  7. guide to: Lumens, Illuminance, Foot-candles
  8. why care about the 'Color Temperature' and 'Color Rendering Index' (CRI)
  9. japaneese fans? anyone speak japaneese?
  10. whos got a ruler?
  11. HOw Big?
  12. sweat box
  13. venting hoods....need feedback
  14. Homemade CFL fixture
  15. More Blue light from HPS ???
  16. Two Lights, One Ballast - Questions
  17. wiring diagrams
  18. Ambient (sp?) Vs Radiant temperatures
  19. Brainstorm, or is it just a fart in the wind?
  20. Cheap bulbs
  21. new lights i bought today check them out
  22. 400Wtt MH COMPACT bulbs..
  23. Help with a fan control.
  24. How much carbon and air flow for a grow room?
  25. Cheap homemade Cooling Tube!
  26. Lumitech "E" Ballast blows bulbs
  27. Is this all
  28. Opinions on 400 HPS
  29. CoolTube parts!
  30. HELP! An urgent vetilation question!
  31. What's the best 1,000 watt HPS lamp for flowering?
  32. New stuff!
  33. Question about fan size?
  34. exhausting two lights...
  35. 1000k
  36. Muffin fan???
  37. Light-Proof Closet Venting - need advice
  38. 6" inline and 6x15x7 room
  39. Light from Bottom ???
  40. Issue with new light coming one....
  41. new set up
  42. ballast wiring help needed
  43. Ballast flip help needed!
  44. Good online growlight source?
  45. A 'Big Refelctor' or a 'tube'?
  46. adding more exhaust - CFM on CFM??
  47. Who's Using a Digital Balllast from Lumatek ?
  48. t 5s
  49. wire help? hydrostat + thermastat+co2 solinoid
  50. Compact fluoro lights
  51. watts or lumens?
  52. help.. my light goes out
  53. o crap!
  54. Need info Led
  55. couple vent questions.
  56. 24/0 vs 18/6
  57. Diy Cfl Light Bar ,more Lumens That T5ho
  58. HPS vs Metal Halide
  59. Please Help! DIY Veg Box Q's
  60. someone show me?
  61. Fan Speed Control - Which One to Use?
  62. Ventilation
  63. T-5 question
  64. (Not) Venting and Using CO2
  65. A Lighting Question?
  66. 600w or 1000w
  67. Some advice on ventilation and lighting please!
  68. Can roots see light,?
  69. GE Starcoats?
  70. air vent/temp
  71. Ducting issues
  72. going from mh to hps
  73. Dimmable ballast with lower wattage bulb?
  74. Digital ballasts and flipflops
  75. LED lights
  76. Marijuana specific LED
  77. Questions about the Wind & Sun
  78. No hood? Bare bulb
  79. got one for the sparky's,, not a short post,,,