GE led13et8/u6/840, 13w, white, dimmable, t8 u-shape, led light bulb, equivalent to a 32w linear fluorescent, 6" leg spacing, bi-pin base, lumens: 1,900, color temperature: 4000 kelvins, mol: 22.5", rated life: 50,000 hours, rated for damp locations, sleeved. For use with approved electronic ballasts.