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Feit Electric 13W/18W/26W Equivalent PL Horizontal 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 CCT Select(2700K/3500K/4100K)LED Light Bulb PL26A/H/CCT/LED/HDRP - The Home Depot
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4 Pin G10q Lamp Holder For Circular Fluorescent Tubes
How to Select your Compact Fluorescent Bulb from Commercial Lighting Experts.