Linear Fluorescent Bulb, Bulb Base Type Medium Bi-Pin (G13), Bulb Shape T8, Color Rendering Index 82, Color Temperature 4100K, Lumens 2,600 lm, Light Technology Fluorescent, Nominal Length 4 ft, Shatter-Resistant No, Watts 28 W, Voltage Ballast Dependent, Standards TCLP Compliant, Bulb Minimum Starting Temperature 60 Degrees F, Bulb Start Type Program, High Output No, Overall Length 47 3/4 in, Rated Life 84,000 hr, Trade Number F28T8/SXL/SPX41/ECO, Bulb Dia. 1 in, Dimmable No, Light Color White