TriGlow (Case of 10) F32T8/SP41 Linear Fluorescent 32-Watt T8 FO32 741 Light Bulb 48" 36,000 Hours Lifetime High Efficiency 3100 lumens providing an industry-high light output for the T8 Tube Brand Cross Reference F32T8/841/ECO-F32T8/SPX41/ECO-F32T8/TL841/ALTO-FO32/841/ECO Cool white 4100K, CRI 83, Ideal for both indoor and outdoor use Works with INSTANT / RAPID Start Fixtures, Long Life ,Bulbs sleeved safe wile shipping