Shat-R-Shield® Fluorescent Lamp, Linear Straight Shatter-Resistant, F25T8 TL841/ALTO (PK X 30) Designation, 25 W Wattage, Fluorescent Lamp, Bi-Pin G13 Medium Lamp Base, T8 Shape, 2150 Lumens, 36000 hr Average Life, 85 CRI, 4100 K Color Temperature, 36 in Length, 1 in Diameter, Copolymer Coated Lamp