Linear Fluorescent Bulb Bulb Base Type Medium Bi-Pin (G13) Bulb Housing Glass/Metal Bulb Shape T8 Color Rendering Index 82 Color Temperature 4100K Lumens 3 000 lm Light Technology Fluorescent Nominal Length 4 ft Shatter-Resistant No Watts 32 W Voltage Ballast Dependent Standards TCLP Compliant Bulb Minimum Starting Temperature -22 Degrees F Bulb Start Type Rapid High Output No Overall Length 48 in Rated Life 40 000 hr Bulb Power Source Requires Separate Ballast