Philips 12W 48" 4000K T8 LED Bulb Philips InstantFit 12W T8 4000K 48 inch LED tube light 12W T8 LED LED, Base: G13 2-Pin Wattage: 12W, Luminous Flux (LM): 1600 Color Temperature (K): 4000K Rated Life (Hours): 50000