Sometimes when I buy a new Metal Halide (MH) bulb, I can see little balls rolling around or the inner arc tube is hazy white. Is that normal or is broken?

The white haze is due to the color of the gas. The metal pieces are residual parts of the MH bulb and are very common. If the bulb lights up with no flicker, you’re fine. If the bulb flickers or cuts out, take it back. Before you take it back (if you can), try to spark the light with another ballast to ensure it is the bulb and not your ballast.

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