Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Color rendering index (CRI) is a measurement on a scale of 0-100 of how accurately the light from a bulb represents an object's true colors; the higher the number, the more natural the colors appear. Any CRI value over 80 will show colors true to life. Bulbs with a warm light appearance have yellow tones. Bulbs with a neutral light appearance are often used in workspaces. Bulbs with a cool or daylight appearance have white/blue tones and are good for inspecting. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).

Bulbs that cannot be sold to the areas listed exceed local regulatory limits on mercury and/or do not meet local efficiency standards.

Replace the U-shaped fluorescent bulbs in your fixture or upgrade to LED. These bulbs are often used in 2'×2' ceiling lights. Select a light appearance to match your existing lighting. Bulbs with more than one light appearance have a switch which allows you to match other lights in the room.

Fluorescent bulbs contain small amounts of mercury. For disposal information, visit www.epa.gov/cfl. Bulbs that cannot be sold to the listed areas do not meet local regulations for mercury content or energy efficiency.