PAR Pro 1100 Watt Hyper Arc HPS Lamp | Innovative Growers Equipment, Inc.
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Sonlight Electronic Ballasts and growing HPS-TS 600W Super Lamp.
LED lamp - Wikiwand
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Amazon.com: iPower GLBULBH1000X2 2-Pack Hydroponic 1000 Watt Horticulture Flowering Pressure Sodium HPS Grow Light Bulb Lamp-High PAR Enhanced Red and Orange Spectrums CCT 2100K, 1000W : Everything Else
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Chapter 2 - State of the Art in Lighting Technologies | Airport Parking Garage Lighting Solutions |The National Academies Press
100W HPS CLEAR ED17
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Sodium-vapor lamp - Wikipedia
Sodium-vapor lamp - Wikipedia
PHILIPS Corn Cob LED 27W = 70W HID HPS Retrofit Light Bulb 3600 Lumen Lamp Non Dimmable 4000K Ballast Bypass EX39 Mogul 100V/277V 27CC/LED/840/ND - 50 to 70 Watt Metal Halide Replacement
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Sodium-vapor lamp - Wikipedia
Sodium-vapor lamp - Wikipedia
File:HPS lamp.jpg - Wikimedia Commons
High Pressure Sodium (HPS) Lamp
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Sodium-vapor lamp - Wikipedia
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Sodium-vapor lamp - Wikipedia
