Pack Of 4 F15T8/CW 15 Watt Straight T8 Cool White 4100K Color Fluorescent Tube Light Bulb F15T8/CW Straight T8 Cool White Color Fluorescent Tube Light Bulb T8 Bulb Type, 825 lumens Light Output, G13 Base 15 watts Energy Used, Cool White Color / Finish 4,100K Color Temperature, 60 CRI, 18" Maximum Overall Length