Larson Electronics - Explosion Proof Light - 400 Watt High Pressure Sodium - 220V or 240V -Class 1 Div 1 & Class 2 Div 1
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Larson Electronics - Explosion Proof Light - 400 Watt High Pressure Sodium - Class 1 Div 1 & Class 2 Div 1
Amazon.com: iPower GLBULBH400X2 400 Watt High Pressure Sodium Super Grow Light Lamp Full Spectrum HPS Bulb for Plants, 400W, 2-Pack, white : Everything Else
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Sunlite 1000-Watt E25 High Pressure Sodium E39 Mogul Base 125,000 Lumens HID Light Bulb (1-Bulb) HD02491-1 - The Home Depot