JESCO Lighting SL5-L6/64 6W T5 Fluorescent Lamp, 6400K. T5 Fluorescent Lamps. Average Life of 20,000 hours. Product Line: T5. Dimension: 8-7/8(L). Diameter: 5/8. Wattage: 6W. Lumens: 480. Dimming: NO. Color Temperature: 6400K. CRI: 87+. Input Voltage: 120V.