Photo 1 of LUMACTIV F20T12/CW 24 Inch 20 Watt T12 Fluorescent Tube Light Bulb 20W Cool White 4100K - F20T12 (2 Pack) Replaces F20T12/SP41/ECO, F20T12/CW/ECO, F20T12/CW/ALTO

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Photo 1 of LUMACTIV F20T12/CW 24 Inch 20 Watt T12 Fluorescent Tube Light Bulb 20W Cool White 4100K - F20T12 (2 Pack) Replaces F20T12/SP41/ECO, F20T12/CW/ECO, F20T12/CW/ALTOPhoto 2 of LUMACTIV F20T12/CW 24 Inch 20 Watt T12 Fluorescent Tube Light Bulb 20W Cool White 4100K - F20T12 (2 Pack) Replaces F20T12/SP41/ECO, F20T12/CW/ECO, F20T12/CW/ALTOPhoto 3 of LUMACTIV F20T12/CW 24 Inch 20 Watt T12 Fluorescent Tube Light Bulb 20W Cool White 4100K - F20T12 (2 Pack) Replaces F20T12/SP41/ECO, F20T12/CW/ECO, F20T12/CW/ALTO