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YGS-Tech Super Bright 54W LED Corn Light Bulb, E39/E40 Large Mogul Base, 6500K Daylight White, 400 Watt Equivalent for Indoor Large Area Lighting, Garage Factory Warehouse Backyard, HID, HPS - - Amazon.com
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Amazon.com : HONGVILLE HPS High Pressure Sodium Grow Light Bulb for Plant Growth, 400 W : Patio, Lawn & Garden