Below we have our bulbs (lamps) that run on metal halide, switchable/convertible, and most electronic/digital grow light systems - Universal lamps can be burned in any position – Base-up, Base-down, or Horizontal. Base-down or Horizontal lamps have to be used so. Metal Halide (MH) bulbs emit a light spectrum which appears blue-white to the human eye. This color spectrum is more conducive for vegetative growth, or starting seeds and cuttings. If you have a MH ballast and want to use it for the fruit/flower stage of your plants' growth cycle, you can get a Red Super MH Bulb from the list below. This type of MH lamp has enhanced red spectrum suitable for the fruit/flower stage. You can also buy a HPS conversion bulb (a special HPS bulb made to run on a MH light system). BGL provides you with the facts about which type and style of lamp you need to suit your particular home greenhouse or commercial growing application. Our lamps are the highest quality and offer you the flexibility that you want. Visit our Information pages if you need further help or contact us with specific questions.  We can help you choose the best solution for your lighting needs.

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Metal Halide (MH) Lamps