How often should you change your HPS bulb ???

Discussion in 'Lighting' started by SN0WY3000, Sep 18, 2012.

  1. I use Sunmaster Dual Spectrum 600 w T15, i have used it for 6 grows or so and each crop is getting less and less now, the box says 24'000 hours life, thats near 3 years on 24 -7.

    What Do You Think ?
  2. Def replace it.

    HID lights...there biggest issue other then heat is after a couple grows it dramatically outputs less.

    The box is most likely refering to total time.

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