Sylvania 12 in. 55-Watt Circline T5 Fluorescent Tube Light Bulb, Warm White (1-Bulb)

Sylvania PENTRON Circline lamps are high lumen output circular shaped T5 diameter lamps that deliver up to 70% more lumens than T9, rapid start Circline lamps. These lamps, available in 9 in. and 12 in. versions, are comparable in diameter to the T9 lamps. The rare earth tri-phosphors are utilized to deliver high lumen output with excellent color rendition and high lumen maintenance.|High performance T5 lamps that produce up to 70% more lumens than T9 circline lamps|Designed for high frequency electronic ballasts|Average rated life of 12,000 hours|Operate on QUICKTRONIC PHO ballast with QUICKSENSE end-of-lamp-life shut-down circuitry and QUICK60+ warranty|Operation on magnetic ballasts is not allowed|Suitable for decorative chandeliers, wall sconces and low profile ceiling fixtures