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4 Pack) PLC-13W 835, 4 Pin G24q-1, 13 Watt Double Tube, Compact Fluorescent Light Bulb, Replaces Philips 38327-3, GE 97596 and SYLVANIA 20671 : Amazon.co.uk: Lighting
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Sylvania 21117 (6-Pack) CF13DD/827/ECO 13-Watt Double Tube Compact Fluorescent Light Bulb, 2700K, 780 Lumens, 82 CRI, T4 Shape, GX23-2 Bi-Pin Base : Amazon.co.uk: Lighting
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