150w Metal Halide with electronic ballast

Discussion in 'Lighting' started by ted.vanh, 25 May 2010.

  1. ted.vanh

    ted.vanh

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    Hi Guys,

    can someone please help me. I bought a metal halide unit with 2 x 150w bulbs. I replaced the magnetic ballast with an electronic ballast. Since doing so I have a small problem in that evryday when the MH's come on both bulbs light up and after about 3 hours the one bulb goes off not to come on again until the next day when the whole cycle starts again.
    Could this be because one of the bulbs might be?? a 250w bulb or is there some other problem that needs addressing?

    Please help
     
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  3. vatso

    vatso

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    You mean Ballasts? you need a ballast for each globe. You need to know it the bulb is 150W or 250W & the ballast is only ratted for a certain wattage.

    I would change globes & see if it still does this maybe the one ballast is faulty?
     
  4. Manic

    Manic Moderator

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    Not all globes can run on electronic ballast either.
     
  5. vatso

    vatso

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    ??? how so?
     
  6. Manic

    Manic Moderator

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    Most electronic ballast use a certain start up procedure that doesn't work on all globes. I read it somewhere. Will try find the link.
     
  7. leslie hempel

    leslie hempel Moderator MASA Contributor

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    pictures are worth a thousand words :) post some and lets see if we can help.. take pics of the spec on the balast...
     
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