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Philips 473942 13T8/MAS/48-840/IF21/P/DIM 10/1 48 Inch LED T8 Type A 13W 2100Lm 4000K 120-277V or 347V 80 CRI 180 Degree Beam Dimmable (929001397834) nostock Philips 321505 MH1000/U/BT37 1000W BT37Philips 473942 13T8 MAS 48 840 IF21 P DIM 10 1 48 Inch LED T8 Type A 13W 2100Lm 4000K 120 277V or 347V 80 CRI 180 Degree Beam Dimmable (929001397834)