Linear Fluorescent Bulb Bulb Base Type Medium Bi-Pin (G13) Bulb Housing Glass/Metal Bulb Shape T8 Color Rendering Index 82 Color Temperature 5000K Lumens 2 900 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 50 Degrees F Bulb Start Type Rapid High Output No Overall Length 48 in Rated Life 30 000 hr Bulb Power Source Requires Separate Ballast