Keystone Technologies, KT-LED13T8-48G-840-X3, Lamp, Single and Double Ended, Series: 800 ComboDrive, KT-LED13T8-48G-840-X3 Designation, 13 W Wattage, 120 to 277 V AC, G13 Lamp Base, T8 Shape, 1950 Lumens, 50000 hr Average Life, 83 CRI, 4000 K Color Temperature, Frosted Lamp, Instant Start, Electronic Ballast, 160 deg Beam, 1.1 in Dia x 48 in L Dimensions