TCP 32442T65K fluorescent Triple Tube PL Lamp - 42 Watt (2600 Lumens) Daylight White (6500K) 4-Pin (GX24q-4 base) Please NOTE: This lamps has a 2-Pin GX24q-4 base Non Dimmable Lifetime: 9.1 years Watts Used/Lumens: 42 Watt/2600 Lumens Estimated Annual Energy Cost to Operate (based on 3 hrs/day): $5.06