Is this blown?

Lowefx

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This is my 150w DE MH bulb. I'm not sure if its blown or if the ballast is toast. Ballasts are only 2 years old. I'm leaning towards a blown bulb with the dark spot. Please advise.
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Dana Riddle

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It's not unusual for a MH lamp to develop spots within the arc tube, usually due to sputtering of the electrodes. If no damage is obvious, it's probably not the lamp.
 
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Lowefx

Lowefx

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I got the new bulbs and still not working. I'm getting replacement ballast in 2 weeks. Ducks, but I'll still have one other light (50% power)
 

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