Sunlite PLT26/E/SP50K/10PK 5000K Super White Fluorescent 26W PLD Triple U-Shaped Twin Tube CFL Bulbs with 4-Pin GX24Q-3 Base (10 Pack) F25T8 Based on 3 hours a

Based on 3 hours a day usage the lifespan is 27

This energy star certified 13-2-25 watt 27K

  series lamps have an increased cri due to the use of  tri-phosphors (rare earth phosphors)

Takes two 18 watt GU24 bulbs (included)

Sunlite PLT26/E/SP50K/10PK 5000K Super White Fluorescent 26W PLD Triple U-Shaped Twin Tube CFL Bulbs with 4-Pin GX24Q-3 Base (10 Pack) F25T8 Based on 3 hours aSunlites triple U shaped fluorescent lamps are fabricated to accommodate ceiling light fixtures typically found in office spaces, clinics medical centers and many other commercial as well as industrial settings. Produces A Comfortable 5000K Of Super White Light With A Color Render Index Of 80 Employs 26 Watts Of Energy While Emitting A Vivid 1800 Lumens Of Visible Light Equipped With A 4 Pin GX24Q 3 Base That Is Compatible With Electronic Ballasts