Ge, ,f26dbx/835/eco4p, cfl 26w, plug in 4 pin double biax compact fluorescent replacement bulb, g24q-3 base, nominal length = 6.4", 12,000 hour, 1710 lumens, 3500 kelvin color temperature, cri=82, minimum start temperature = 32 degree Fahrenheit, tclp compliant, energy star rated.