Linear Fluorescent Bulb Bulb Base Type Miniature Bi-Pin (G5) Bulb Housing Glass Bulb Shape T5 Color Rendering Index 85 Color Temperature 5000K Lumens 4 800 lm Light Technology Fluorescent Nominal Length 4 ft Shatter-Resistant Yes Watts 54.1 W Voltage Ballast Dependent Standards Meets 2012 Lighting Legislation Energy Standards TCLP Compliant ANSI Code 6840-2 Amps 0.455 A Bulb Minimum Starting Temperature 14 Degrees F Bulb Start Type Preheat High Output Yes Overall Length 46 in