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  1. M

    Converting Metal Halide to High Pressure Sodium

    I'd just personally buy a conversion bulb or a switchable ballast (about $150).
  2. M

    CFL Color Temperature for veg/flower?

    Or should I even use the 5000's at all?
  3. M

    CFL Color Temperature for veg/flower?

    Hey. I was just wondering... which color temps do you use for veg and flower? I'm going to buy some 55 watt spiral CFL's in 2700K and 5000K, but which should I use for veg and which should I use for flowering?
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