Convert any standard socket into a security light. These bulbs have a built-in sensor that turns them on when it detects movement in the dark. They shut off five minutes after motion stops. You can change the light appearance with a switch on the side.

PAR38 bulbs have a narrow beam angle that provides a focused beam of light.

A built-in sensor turns these bulbs on when it gets dark, then off when it’s light out. Change the light appearance with a switch on the side.

PAR38 bulbs have a narrow beam angle that provides a focused beam of light. They’re a good choice for outdoor security lighting.

Lock these bulbs into GU24 sockets with a twist.

Bulbs with a selectable light appearance have a switch on the side, so you can match other lights in your room.

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.

LED bulbs last longer and are more efficient than fluorescent bulbs. They generate little heat and withstand vibration. Plastic bulbs are shatterproof. Socket-ready bulbs work with most instant-start electronic ballasts, but not all. For a full list of compatible ballasts select a part number and view product detail. Ballast bypass bulbs eliminate the need for a ballast so the socket must be wired directly to the power source.

Fluorescent bulbs are energy efficient, but they contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl). Plastic-coated glass bulbs are shatter resistant; the coating retains glass shards if they break.

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

Replace existing fluorescent light bulbs that have recessed contacts or upgrade them to LED. Select a light appearance to match your existing lighting. Bulbs with more than one light appearance have a switch so you can match other lights in the room.

LED bulbs last longer and are more efficient than fluorescent bulbs. To install these bulbs, bypass the ballast by wiring the socket directly to the power source. Use them in fixtures with double-ended wiring, where the power is wired to both sockets.

Plastic-coated glass bulbs are shatter resistant. If the glass breaks, the coating keeps shards from falling.

Swap new fluorescent light bulbs into your single-pin base fixture, or upgrade them to LED. 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.

LED bulbs last longer and are more efficient than fluorescent bulbs. They work with sockets that are wired directly to the power source. T8 bulbs can be used in T12 sockets that are wired directly to a power source.

Plastic-coated glass bulbs are shatter resistant. If the glass breaks, the coating keeps shards from falling.

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.

LED bulbs last longer and are more efficient than fluorescent bulbs. They’re compatible with most instant-start electronic ballasts, or you can use them in sockets wired directly to the power source. Check if your ballast is compatible by selecting a part number and clicking product detail. These bulbs are made for T8 sockets, but can be used in T12 sockets that are wired directly to a power source.

Brightness is measured in lumens; the higher the lumens, the brighter the bulb.

Replace high-intensity discharge (HID) lights with the longer-lasting, energy-efficient LEDs. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. LED lights are perceived as brighter at night than high-intensity discharge light technologies, so they require fewer lumens to provide the same brightness. Match your old light’s wattage to find the right LED bulb. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

Plug socket-ready bulbs into an existing fixture with a compatible ballast.

Ballast bypass bulbs eliminate the need for a ballast, so the socket must be wired directly to the power source.

Replace the metal-halide light bulbs in your fixture.

Bulbs for open fixtures have a strong outer shell to keep them from shattering if they fail.

Bulbs with an EX39 base can also be used in E39 sockets.

Pulse-start bulbs restart nearly twice as fast as probe-start bulbs.

Plastic-coated glass bulbs are shatter resistant. If the glass breaks, the coating keeps shards from falling.

Bulbs that cannot be sold to Canada exceed local regulatory limits on mercury content.

Often used in task lights, these bulbs are comparable to PL, Dulux, and Biax bulbs. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. Bulbs with a warm light appearance have yellow tones. Bulbs with a neutral light appearance are often used in workspaces. Bulbs with a cool light 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.

LED bulbs last longer and are more efficient than CFL bulbs. They generate little heat, withstand vibration, and are shatterproof. Plug socket-ready bulbs into an existing fixture with a compatible ballast.