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UK420 > Cultivation > Growroom Design > Lighting
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  1. heat comparison HPS v MH (5 replies)
  2. Heat Comparison of 300w CFL to 250w HPS (36 replies)
  3. Diamond reflecter and 1000w Ballast (3 replies)
  4. how far away should a 400 watt hid be when the plants are no longer se (2 replies)
  5. I used to run dual spectrum but now i use MH & HPS (5 replies)
  6. Running costs. (33 replies)
  7. grostar which one better fills 1m squared (12 replies)
  8. difusser on or off ? (3 replies)
  9. can i use this reflector with ballast and hps bulb? (8 replies)
  10. Purple spectrum? :-/ (4 replies)
  11. What make 400w HPS bulb do you grow with??? (2 replies)
  12. 600w hps on a light rail how much space will it cover (3 replies)
  13. help with electric problem (16 replies)
  14. 400 watt digi ballast (28 replies)
  15. bulb compatability (21 replies)
  16. adding a MH (14 replies)
  17. can i use a 250w bulb in 1000w ballast? (9 replies)
  18. LED Lights - Yes/No? (6 replies)
  19. 400 watt light (5 replies)
  20. Seedlings under a 600 (11 replies)
  21. About small wattage cfls (13 replies)
  22. Combining enviro leads into a junction box? (4 replies)
  23. if anyone can show me what a contactor for a light timer looks like (1 reply)
  24. problem with my analog timer (6 replies)
  25. diamond reflectors (10 replies)
  26. lighting (8 replies)
  27. how to program analog light timer (5 replies)
  28. supplemant lighting (3 replies)
  29. a blue spectrum light (2 replies)
  30. RCD tripping (30 replies)
  31. Just hooked up my MH400 (11 replies)
  32. HID from another country in UK? (3 replies)
  33. self ballest nlite's? Better than hps? (11 replies)
  34. my 250 hps isnt working! (6 replies)
  35. ballasts again! (6 replies)
  36. COOLTUBES ARE THEY ANY GOOD (6 replies)
  37. Help! (20 replies)
  38. LED Droplights (2 replies)
  39. Retrofit lamp... (4 replies)
  40. phillips or osram (28 replies)
  41. 480w inductive timer! (5 replies)
  42. Fitting a longer cable between Ballast and Bulb (4 replies)
  43. LIGHTING question (4 replies)
  44. Best Light intensity for vegging (3 replies)
  45. How much is too much? (5 replies)
  46. How to dispose of HPS bulbs? (38 replies)
  47. light question (1 reply)
  48. to the sparkys (7 replies)
  49. Big yielders (3 replies)
  50. Led question (4 replies)
  51. Grostar? (12 replies)
  52. Hig temp CFLs (14 replies)
  53. wiring 4 lights in parallel to a plug (12 replies)
  54. Good light for mother on a budget (17 replies)
  55. need a new bulb? (9 replies)
  56. cfl question (3 replies)
  57. SULPHUR PLASMA LAMPS (24 replies)
  58. 2 600w in 1.2mt Tent (7 replies)
  59. across or down ? (2 replies)
  60. plasma lighting (2 replies)
  61. euro reflector question (2 replies)
  62. lights n help!!!! (3 replies)
  63. Changing from envirolite to HPS ? (8 replies)
  64. Cooltubes vs airhood etc (15 replies)
  65. jupiter 2 light rail (0 replies)
  66. how many plants under each 600w hps (10 replies)
  67. wireing a three phase plug (9 replies)
  68. Envirolites.. (68 replies)
  69. Contactor Relay (7 replies)
  70. weather proof outdoor security light (4 replies)
  71. New Timer/Contactor (5 replies)
  72. reflector? (3 replies)
  73. lamp life (6 replies)
  74. 600 Watts HPS keep tripping RCB switch (22 replies)
  75. Unknown Ballast (2 replies)
  76. easi-rollers (8 replies)
  77. What 400w lighting system should I buy? (5 replies)
  78. Light choice (0 replies)
  79. what clf light (1 reply)
  80. Stealth Greenhouse Reflectors (10 replies)
  81. lights jammed (3 replies)
  82. Dutch Method (14 replies)
  83. what is a conductor (18 replies)
  84. Help with Ballast. (5 replies)
  85. Reflector Cabling (1 reply)
  86. lies from growell (12 replies)
  87. Is this? (2 replies)
  88. Wiring my cooltube (7 replies)
  89. DIY air cooled lamps (0 replies)
  90. Envirolights... (3 replies)
  91. Best 250w HPS (4 replies)
  92. is 55 watts per square foot optimum? (13 replies)
  93. Energy saving bulbs???? (15 replies)
  94. digital ballast (3 replies)
  95. 400 or 600 (5 replies)
  96. 400W HPS (7 replies)
  97. mini grostar (12 replies)
  98. Light Efficiency (2 replies)
  99. 250 vs 400 Watt. Help Needed. (10 replies)
  100. what for bloom and grow (5 replies)
  101. advantagers of useing a 1000w lamp (9 replies)
  102. Canatronics ??? (30 replies)
  103. 250w CFL (2 replies)
  104. cpuple of questions .. (7 replies)
  105. Humming noise (4 replies)
  106. Light reflection (5 replies)
  107. Photographers Light Meter (2 replies)
  108. Contactor for 250w HPS (6 replies)
  109. Can I change my 400w to a 600w in a 1x1x2m tent? (8 replies)
  110. I Don't Like My Ballast At All! (30 replies)
  111. Best Lighting combo???? (2 replies)
  112. Contactors and extension leads (1 reply)
  113. new light (1 reply)
  114. Fresh2 bulb (7 replies)
  115. My 400watter Flickers (8 replies)
  116. Mini Grostar (14 replies)
  117. finally decided (8 replies)
  118. cfl house lights - what should i use (18 replies)
  119. light cycles (4 replies)
  120. UVA (12 replies)
  121. contactor (3 replies)
  122. Veg light from from 24/0 to 18/6 ? (7 replies)
  123. what light? (13 replies)
  124. envirolight 125 w (2 replies)
  125. Cooltubes (0 replies)
  126. 400w Grolux lamp vs 400w Son-T (0 replies)
  127. red and blue or just red ,,for flowering (3 replies)
  128. 125w envirolight - contactor? (3 replies)
  129. Upgrading from Envirolites to 400W HPS Cooltube (5 replies)
  130. Hps Bulb Blown! (7 replies)
  131. small space, best shade? (4 replies)
  132. sockets?? (2 replies)
  133. Nearly there for my first grow-lighting query (3 replies)
  134. any help appreciated!! please (15 replies)
  135. can i swap my hps bulb with a MH one? (3 replies)
  136. 125 Enviro – suitable for a small Mum box...? (9 replies)
  137. Gone through 2 enviros in 2 days! (16 replies)
  138. Would 250W HPS be right? (2 replies)
  139. Metal Halide VS Ecolight ... what's the best ? (4 replies)
  140. How much is too much? (4 replies)
  141. upping light halfway through 12/12 (1 reply)
  142. The Best? (6 replies)
  143. Envirolites: Good, bad or just OK (9 replies)
  144. 2 x 250w or 1 400w (5 replies)
  145. 400watt hps/mh (6 replies)
  146. Cost of running 400W HPS (9 replies)
  147. Contactor > Timer > HPS (10 replies)
  148. Digital or compact ? (6 replies)
  149. extra light (3 replies)
  150. ballast (2 replies)
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