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toggled 64-Watt 4 ft. Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8/T12 FluorescentBulb 8000 Lumens 6500K FC8TO4-D416-65321 - The Home Depot
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Maglite LED Conversion Kit for 2,3,4,5,6 D cell and C cell Maglights Flashlights