HPS Question

Discussion in 'Growing Marijuana Indoors' started by b3310w, May 17, 2010.

  1. Hey all,
    was curious if i could put an MH conversion bulb in my Hydrofarm 250w HPS ballast. Or do i have to have a special ballast that calls for conversion? A switchable ballast? Thanks in advance.
  2. A coversion bulb will work but it's not worth it all. Get a hortilux hps bulb that has the 30% extra blue spectrum and your plants will absolutely love it during veg and flower
  3. i have a phillips green power 600w bulb it's dual spectrum and works great for both veg and flower! sure it cost about £30
  4. Thanks guys. Hey Stoned, where might i find one of those phillips green lights at? like to read up on em, but cant seem to find em.
  5. To your question, as long as it is the right wattage then yes you can use the MH conversion bulb off a HPS ballast. That's exactly what the "conversion" part means, that it is made to run off the "wrong" type of ballast.

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