Jarosh February 25, 2005 Share February 25, 2005 I'm currently mulling over the idea to retrofit my current 36" Dual PC Orbit lighting system with a single 150-175 watt or Dual 70 watt MH's. If I move the current bulbs out from the center as far as I can, there should be enough room for a MH fixture between them. I know I would have to change out the current clear plastic shield for a glass one, and upgrade the fan system to deal with the extra heat. Any advice would be appreciated. Link to comment Share on other sites More sharing options...
Guest killrblue February 25, 2005 Share February 25, 2005 There is a member here that started that retro on a 20" (1 70w MH)and 30" (2 70w MH). More of his work can be found in nano-reef.com. I was going to do this conversion on my 30 but just didnt have the time to do it. There are now smaller 70w ballasts out. KrackerG, Jeff, is his name. 20"10g 30" Da Twinns over 20g Link to comment Share on other sites More sharing options...
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