GE F40CW is a 40W linear T12 fluorescent lamp designed for general commercial and industrial lighting applications. The lamp features a 48-inch nominal length, 1.50-inch diameter T12 glass tube and G13 medium bi-pin base. It produces Cool White illumination with an approximate 4100K color temperature and provides approximately 3,050 initial lumens. The lamp is designed for operation with a compatible fluorescent ballast and offers an approximate rated service life of 20,000 hours.