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  1. cfl (1 replies)
  2. Buzzing Ballast (5 replies)
  3. Vibrating lamp (1 replies)
  4. Rattling noise from 250w Lamp (3 replies)
  5. Why did my reflector burn? (27 replies)
  6. question about air cooled hoods and ballasts (1 replies)
  7. Questions for bulb experts. (5 replies)
  8. a plugged in ballast without a bulb, using power? bad for ballast? (5 replies)
  9. Anybody ordered light controllers from this guy (dxsoundo.com) (68 replies)
  10. procyon 50 first impressions (19 replies)
  11. Quick question about MH (9 replies)
  12. Bulbs Losing Lumens Over Time... (4 replies)
  13. MH vs CMH Veg (9 replies)
  14. Lighting Recommendations please (9 replies)
  15. Where'd all the Light Go?? (4 replies)
  16. Looking for a ballast for this bulb (9 replies)
  17. growledhydro vs hydrogrowled??? (17 replies)
  18. Homemade Aircooled Parabolic reflector for vertical bulb! (17 replies)
  19. Lumatek ballast not firing the 400 watt bulb over 275 watts (5 replies)
  20. Needing help with CFL bulb's (11 replies)
  21. Help me build an awesome LED!!! (8 replies)
  22. Torn between Lumigrow ES 330 and Stealthgrow 602 (9 replies)
  23. Veg Room (5 replies)
  24. PureLux, future of artificial lighting? (1 replies)
  25. Whats the best time to switch from mh to hps in flower? (13 replies)
  26. blinking light from smoke alarm? (3 replies)
  27. Purdue Gets $4.8M Grant For LED Lighting (6 replies)
  28. MH/HPS Blow Ups, any personal experience? (12 replies)
  29. Best light kit for Beginners (8 replies)
  30. Opinions on a 600w HPS (11 replies)
  31. [New PL-L Type] Osram Dulux L HE "High Efficiency" rated at 100lm/W (5 replies)
  32. LED panel. need help building (3 replies)
  33. hey LED fans. (2 replies)
  34. 600w or 1000w? (11 replies)
  35. Sylvania 1000w HPS Bulbs? (4 replies)
  36. a question about lighting (5 replies)
  37. 1w, 2w, and 3w LED penetration discussion (26 replies)
  38. 2' T5's (3 replies)
  39. 600w bulbs...Decisions, decisions, decisions (1 replies)
  40. new 1k hps smells faintly of melting plastic? (7 replies)
  41. homemade led light that I posted somewhere else (28 replies)
  42. Ballast started clanging (4 replies)
  43. making a led panel (3 replies)
  44. What Ballast? (2 replies)
  45. LED Panel For Small Grow? (10 replies)
  46. Why has there been no major advances in HPS bulbs? (90 replies)
  47. What is the best 1000w MH bulb for the money? (16 replies)
  48. sulfer plasma lamps ?? (10 replies)
  49. LEDs 2011 - a huge step from 2010 (4 replies)
  50. 220w PLL or 150w hps? (2 replies)
  51. sunpulse bulbs (18 replies)
  52. All about Ballast (0 replies)
  53. 250W CMH and 600W HPS (14 replies)
  54. Issues with hortilux super blue (5 replies)
  55. No stretch under LED (4 replies)
  56. Spectrums, Intensities, and sources of light. (9 replies)
  57. Sunpulse splitter 2-600w from 1k!?!?! (38 replies)
  58. LED Flood light? Opinions? (1 replies)
  59. Digilux 600w enhanced spectrum Tru Metal Halide (32 replies)
  60. IMPORTANT anyone using CFL's please read!!! (10 replies)
  61. What is the life expectancy of a MH capacitor/ballast (9 replies)
  62. digital ballast set up? (7 replies)
  63. anyone wired one of these? (14 replies)
  64. LED for vegging only in a 3' x 2' space (2 replies)
  65. Philips 12 watt leds (3 replies)
  66. Bulbs (4 replies)
  67. C.M.H (3 replies)
  68. D LUX bulbs (1 replies)
  69. LED panel help please (17 replies)
  70. switching to vertical, need help converting lamp (0 replies)
  71. Digital Greenhouse ballasts? (5 replies)
  72. LED Lamps and Light Bleaching in a Micro Grow Scenario (13 replies)
  73. good led light? (69 replies)
  74. Philips HPS lamps uMol output "the list" (2 replies)
  75. Want direct chinese prices? (7 replies)
  76. 250w CFL Compatible Timer (1 replies)
  77. two light controllers,one 60 amp breaker (6 replies)
  78. Gib 600W and 200 000 lumens?? (3 replies)
  79. anybody using 'tek' lighting?? (4 replies)
  80. A question about ballast kits. (8 replies)
  81. UVB LED (2 replies)
  82. LED questions (6 replies)
  83. Easiest/cheapest way to insulate my reflectors? (1 replies)
  84. LED LIGHT HELP PLEASE (4 replies)
  85. NEED suggestions for 150w hps (5 replies)
  86. Heat loss...How much? (1 replies)
  87. 400w hps light? (4 replies)
  88. Can someone explain please? About the light color? (2 replies)
  89. Got a new Cab from His House, need LIGHT ADVICE! (21 replies)
  90. Lumatek Ballast Question (3 replies)
  91. CFL ballast question (3 replies)
  92. 250 watt closet on flip flop (8 replies)
  93. Hanging bulbs vertically (7 replies)
  94. dollar for dollar (2 replies)
  95. How sketchy is this ballast? (9 replies)
  96. 1000 watt light question (11 replies)
  97. THE ART OF TROUBLESHOOTING ARC DISCHARGE LAMPS (fyi) (2 replies)
  98. 600w HPS plus 400w MH or.....1 1000w HPS (9 replies)
  99. Lighting Spacing From Top of Plants? (5 replies)
  100. Is 12 AWG wiring OK for this purpose? (1 replies)
  101. Recommend me a LED grow light (34 replies)
  102. 8KW 240V light relay needed, dual trigger, 6+2? (7 replies)
  103. Magnum XXXL 8" vs. Blockbuster 8" (25 replies)
  104. 4-55w on workhorse 8? (3 replies)
  105. LED sellers / test grows (8 replies)
  106. Watts (7 replies)
  107. LightintheBOX LED offers (0 replies)
  108. 1200 watt ballasts (7 replies)
  109. Sunlight Supply 1000W HPS ballast problem (3 replies)
  110. Anyone try Inda-gro Induction Lights? (25 replies)
  111. Your light controllers solved (22 replies)
  112. Bi-Spectrum (COOL PLASMA) Lights? (5 replies)
  113. Wondering wether we have any plasma experiences here at IC? (1 replies)
  114. sMUDGES ON MY BULB....SAFE WAY TO WASH?? (11 replies)
  115. AC reflector with duct flanges PERPENDICULAR to bulb? (6 replies)
  116. Lighting Experts! CMH+PLL vs CMH+CMH? (8 replies)
  117. Bulb rattle? (4 replies)
  118. Nice, Cheap 13w T5 with Integrated Ballast (0 replies)
  119. Hortilux Bulbs ? (8 replies)
  120. 250w CMH parts... recommendation? (1 replies)
  121. cfl vs hps temps? (9 replies)
  122. Flowering PHOTO PERIOD 12-13 Hours Experiment (19 replies)
  123. capacitor ticking? (0 replies)
  124. Switching 1ks and Intermatic T-101 to 220? (3 replies)
  125. Ballast fires, bulb doesnt (9 replies)
  126. I have a 340w led, thinking about adding 600-1k of HID (0 replies)
  127. digilux or sunpulse? (1 replies)
  128. hps wiring help (4 replies)
  129. Are digital ballasts better than magnetic ballasts? (52 replies)
  130. Vertical bulbs, Lumatek electronic ballasts. (1 replies)
  131. Hortilux warranty (1 replies)
  132. 400w CMH vs. 1000w MH (11 replies)
  133. 400W MH Conversion Bulb ? (1 replies)
  134. 1000watt bulbs in 750watt lumatek digi ballasts. (7 replies)
  135. Anyone using Advance ballasts with PL-L or T5/HO?? (0 replies)
  136. Light fixture Cord for Digital Ballast (2 replies)
  137. Do lumens really matter? (16 replies)
  138. M47 MH ballast? (1 replies)
  139. 2 x 150w HPS = Better Than 600w HPS?!? (10 replies)
  140. HPS or 3000k MH bulb for flower? (3 replies)
  141. Redoing my lighting, hows this? (5 replies)
  142. metal halide K ratings (4 replies)
  143. AgroMax 600 watt Hybrid HPS/MH Bulb (4 replies)
  144. DIY LED red/white (67 replies)
  145. Growzilla dual bulb reflector reviews? (0 replies)
  146. my new bulb un-usable? (broken) (0 replies)
  147. Floro Ballast Question (1 replies)
  148. bad bulb and ballast (0 replies)
  149. CFL or HPS/MH switchable (5 replies)
  150. since light mover put in, nothing but popcorn (16 replies)
  151. Question on magnetic ballast's (0 replies)
  152. What do you think of this light combo? Lumatek + Supersun2 + Red Spectrum HPS (20 replies)
  153. MH/HPS combo??? (10 replies)
  154. Bulbs, bulbs, bulbs (5 replies)
  155. 1000 watt super sun 2 vs. 1000 watt magnum XXXL (13 replies)
  156. To hps or not to hps (10 replies)
  157. 125w and 250w CFL Question (5 replies)
  158. any reputable companies making a blue-only spectrum lamp? (3 replies)
  159. 8w LED question (2 replies)
  160. question about dimmable ballasts (3 replies)
  161. 1000 w reflector for best yield?anyone help? (2 replies)
  162. Sylvania grolux 400w HPS vs Osram plantastar 400w HPS any opinions? (2 replies)
  163. AN digital ballasts (16 replies)
  164. CFL grower (0 replies)
  165. Need some input in CFL light placement (10 replies)
  166. lumatek 120/240 plug (0 replies)
  167. CFL lamp wiring (1 replies)
  168. LED Break Through? (4 replies)
  169. simple question about CMH (4 replies)
  170. need help with fuse panel (2 replies)
  171. HPS noob (0 replies)
  172. Where do you get cheap CFL fixtures? (7 replies)
  173. Digital Balasts? (11 replies)
  174. cfl for mother room??? (11 replies)
  175. 600 or 1000 (1 replies)
  176. anyone here reputable electrician 831 408 are (1 replies)
  177. Liquid Lumens (0 replies)
  178. T5 LIGHTS (13 replies)
  179. Lumatek ballast (10 replies)
  180. wiring 100 watt hps (1 replies)
  181. To much E for the breaker to handle? (1 replies)
  182. Anybody put a mylar tube inside big CFL hung vertical?? (1 replies)
  183. PLEASE HELP! Heat issue with 6kw (12 replies)
  184. Oppss! (1 replies)
  185. LED 90w UFO...I Need Help and Advive!!!! (12 replies)
  186. 120v or 240v (1 replies)
  187. 400 hps overkill? (11 replies)
  188. Question About Which Specific LED and Driver Arrangement is Most Efficient (0 replies)
  189. 400watt light at 5feet high, how many sq.ft. does it cover? (3 replies)
  190. Will a 400hps run in a 430 ballast? (1 replies)
  191. Looking to buy 16 x Air Cooled Hoods... Opinions? (12 replies)
  192. 1000 watt bulb in a 600 watt ballast? (14 replies)
  193. major difference in yield between 430 and 1000 watt hps? (5 replies)
  194. blockbusters or radiants 1000s which one to buy (5 replies)
  195. 175 MH burn (1 replies)
  196. solar pumped fiber optic lighting (7 replies)
  197. True? Some white LED's give more blue light (430nm-ish) than ACTUAL blue LED's?! (7 replies)
  198. Bulbs (4 replies)
  199. hidhut digis (4 replies)
  200. High Output LEDs (6 replies)
  201. LIGHTS HELP (5 replies)
  202. BEST L.E.D. SOLD (115 replies)
  203. how much light, is too much light? (6 replies)
  204. 4 light room 2 on every 2 hours (6 replies)
  205. Grounding question (3 replies)
  206. Question about MH conversion lamps (2 replies)
  207. Quantum ballasts - customer / retailer / warranty issues? (4 replies)
  208. positronic digital ballasts (2 replies)
  209. Found this (2 replies)
  210. will these led's replace my 1000w hps? (1 replies)
  211. Reflectors required for fluorescents to ignite? (5 replies)
  212. adjust a wing, or air cooled reflector (8 replies)
  213. 4x8x7 tent best hood to cover and cool (0 replies)
  214. Dig Vs Mag Ballasts... (10 replies)
  215. 1000 watt bulb with 600 watt ballast (1 replies)
  216. Philips Alto HPS Bulbs - bargain or junk? (1 replies)
  217. perfect spacing of Super Sun 2 with 600W (16 replies)
  218. Flipflop to hide usage or double output (7 replies)
  219. Need Help! Light Controller + Dryer Ot Questions (29 replies)
  220. Why CMH by itself sucks during flower; Not the retrowhite (5 replies)
  221. Color Temperature Match Photosynthesis graph (3 replies)
  222. Hid Lights foot print, help! (4 replies)
  223. really undecided on closet light, need assistance! (0 replies)
  224. Does anyone use Blue bulbs throughout? (56 replies)
  225. hanging 400 watt hps diagonal in DR80 (4 replies)
  226. LED efficiency? pfft.. Double it with Plasma (8 replies)
  227. Extra lumens (0 replies)
  228. Sunpulse UV blue bulb (0 replies)
  229. Regular $34 600HPS vs $140 'Grow' bulb ? (17 replies)
  230. HQI's... (29 replies)
  231. Wanting to change150 HPS bulb to a 250 or 400 (5 replies)
  232. Lumatek Recall (35 replies)
  233. Flower blue light (0 replies)
  234. RF Interference... (11 replies)
  235. This could be useful for DIY LED (1 replies)
  236. What would you choose between... (4 replies)
  237. t8 single pin fluorescent fixture (3 replies)
  238. Philips master city white, cdo-tt 250w, is this any good for vegging? (1 replies)
  239. Anyone ever try and repair a Lumatek 1000W? (6 replies)
  240. plasma is here (5 replies)
  241. Magnum XXXL modifiable to accept a 2nd bulb? (6 replies)
  242. 150w HPS or 250w HPS in cooltube+ plus venting it(DR40) (1 replies)
  243. Best 400w HPS Bulb (7 replies)
  244. Light Placement (0 replies)
  245. 126 watt led's(or led's around the same power) and contactor relays? (0 replies)
  246. Identifying morgul socket in my cooltube (6 replies)
  247. Light mover for two 600s? (5 replies)
  248. mixing ballasts/reflectors/bulbs etc. (1 replies)
  249. best non aircooled hood (1 replies)
  250. Questions about grounding a flourescent ballast (19 replies)