(Case of 15) F48T12 / D / HO / ALTO - 60 Watt - T12 Linear Fluorescent Tube - High Output - 6500K - Philips 369843 (Case of 15) F48T12 / D / HO / ALTO - 60 Watt - T12 Linear Fluorescent Tube - High Output - 6500K - Philips 369843