Sunlite 30275-SU FB31/SP841 31W Fluorescent T8 U-Bend Tube Bulb, Mini Bi-Pin, Cool White

The fluorescent 31 watt 4,100k cool white t8 u-bend tube features a mini bi-pin base, provides a light output of 3,000 lumens at a color rendering index (cri) of 82 and can last an average of 20,000 hours.