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Amazon.com: Ultra Sun Metal Halide (MH) Conversion Grow Lamp, 600-Watt - Runs On HPS Ballast : Everything Else
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Amazon.com : TOPHORT 600 Watts Digital Dimmable Electronic Ballast for HPS MH Grow Light Bulb Lamp (600W, Blue) : Patio, Lawn & Garden
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Buy Interlux 1000 Watt Metal Halide Grow Light Bulb Online — Grow Light Central
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Buying a Metal Halide Bulb: 4 Factors to Consider — 1000Bulbs.com Blog
Eco Farm 250/400/600W Metal Magnetic Ballast Grow Light for HPS & MH - GrowPackage.com
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Conversion Bulbs: HPS vs Metal Halide Bulbs — 1000Bulbs.com Blog
Amazon.com: AgroMax 250 Watt MH Conversion Grow Light Bulb : Patio, Lawn & Garden
AgroMax Metal Halide Lamp - 600 Watt | HTG Supply
