The Philips energy Advantage lights are super-efficient, quality, compact fluorescent lamps. The Philips 22029-3 PL-T bulb is a 33-watt CFL that is perfectly suited to downlighting in offices, retail stores, and commercial locations. With an intensity of 2300 lumens, this lamp provides an abundance of light at a color temperature of 4100K. The cool white light of this PL-T CFL gives a more natural light to any room. At 10,000 life hours this bulb will outlast any equivalent incandescent. This high performance lamp will satisfy all your lighting needs and works great in medium and high-bay applications.