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Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com
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Philips - HID Lamp: High Intensity Discharge, 18 Watt, Commercial & Industrial, Double Contact Bayonet Base - 56541246 - MSC Industrial Supply
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Philips 234047 18-watt T15 SOX-E18 Low Pressure Sodium HID Light Bulb - High Intensity Discharge Bulbs - Amazon.com
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