The Philips 14903-9 PL-T bulb is a quality, compact fluorescent lamp. This 42-watt CFL is perfectly suited to downlighting in offices, retail stores, and commercial locations. With an intensity of 3200 lumens, this lamp provides an abundance of light at a color temperature of 4100K. This PL-T CFL may be used with electronic dimming ballasts to provide a full range of ambient cool white lighting. At 12,000 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.