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In an HPS lamp, does the outer bulb contain anything important, or is it just there to protect the arc tube in the middle? Will the bulb explode or implode if you
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In an HPS lamp, does the outer bulb contain anything important, or is it just there to protect the arc tube in the middle? Will the bulb explode or implode if you
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File:HPS-lamps.jpg - Wikimedia Commons
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High Pressure Sodium (HPS) Lamp
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