Linear Fluorescent Bulb Bulb Base Type Miniature Bi-Pin (G5) Bulb Housing Glass/Metal Bulb Shape T5 Color Rendering Index 85 Color Temperature 3000K Lumens 3 500 lm Light Technology Fluorescent Nominal Length 3 ft Shatter-Resistant No Watts 39 W Voltage 120V AC Standards TCLP Compliant Bulb Minimum Starting Temperature -20 Degrees F Bulb Start Type Rapid High Output Yes Overall Length 33 3/8 in Rated Life 30 000 hr Bulb Power Source Requires Separate Ballast