Linear Fluorescent Bulb, Bulb Base Type Medium Bi-Pin (G13), Bulb Housing Glass/Metal, Bulb Shape T8, Color Rendering Index 80, Color Temperature 5000K, Lumens 2,850 lm, Light Technology Fluorescent, Nominal Length 4 ft, Shatter-Resistant No, Watts 32 W, Voltage Ballast Dependent, Standards TCLP Compliant, ANSI Code 1005-2, Bulb Minimum Starting Temperature -22 Degrees F, Bulb Start Type Rapid, High Output No, Overall Length 48 in, Rated Life 40,000 hr