Linear Fluorescent Bulb, Bulb Base Type Miniature Bi-Pin (G5), Bulb Shape T5, Color Rendering Index 85, Color Temperature 4100K, Lumens 2,900 lm, Light Technology Fluorescent, Nominal Length 4 ft, Shatter-Resistant No, Watts 26 W, Voltage Ballast Dependent, Standards Meets 2012 Lighting Legislation Energy Standards, Bulb Minimum Starting Temperature 0 Degrees F, Bulb Start Type Rapid, High Output Yes, Overall Length 45 1/4 in, Rated Life 30,000 hr, Trade Number F28T5/841/WM/ECO/HO