Homeowners and do-it-yourselfers can get more information, including warranty registration, at Lightahome.com:

INTENDED USE
Provides general illumination in residential and light commercial application. Ideal for use in foyers, hallways, bedrooms, offices, utility work areas, stairways and many other rooms in the house.

ATTRIBUTES
The Disk emphasizes contemporary design to complement decors with a modern sensibility. A polished brushed nickel concentric, low-profile housing and a flat glass diffuser makes a subtle but bold statement. The diffuser has a frosted white screened center that provides a wide spread even illumination and its clear outer ring has a glowing effect when illuminated which is complemented by a flat polished brushed nickel disk finial. Can be wall mounted. The finial provides easy access for cleaning and maintenance.

Includes (1) 22W or (1) 40W circline T5 3500K fluorescent lamps for energy efficiency, superior color rendering and long life.

Standard with electronic ballast (120 volt, 60Hz) ensures no flickering and quiet operation without interfering with other home electronics.

For use with non-dimmable switches only.

All mounting hardware included.

Available in resale packs of two only.

LISTING
UL listed to US safety standards and suitable for damp locations. ENERGY STAR® qualified.

WARRANTY
Guaranteed for two years against mechanical defects in manufacture (excludes lamp).