Often used in recessed can fixtures and track lighting, these bulbs produce a focused beam of light. 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 commonly used in workspaces. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.

Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.

Pins on the base lock these bulbs into sockets to withstand vibration. They're often used in machines and elevators. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.

With a 1 1/16" dia. base, these bulbs fit standard household light sockets. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.

Often used in recessed can fixtures and track lighting, these bulbs produce a focused beam of light. 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 commonly used in workspaces. Bulbs with a cool light appearance have white/blue tones and are good for inspecting. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh.

PAR bulbs have narrow beam angles that provide more focused beams of light than other floodlights. A short length allows them to fit in small can fixtures without protruding.

LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.

CFL (compact fluorescent) bulbs are more energy efficient and last longer than halogen bulbs. It takes several seconds for them to reach full brightness. They contain small amounts of mercury (for disposal information, visit www.epa.gov/cfl).

Halogen bulbs are energy efficient.

Bulbs that cannot be sold to the listed regions do not meet mercury and/or energy efficiency regulations.

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.

Create a focused beam in displays. These bulbs are LED replacements for halogen bulbs, so they use a fraction of the energy and generate less heat. They also have museum-quality color accuracy, so colors appear as accurate and vibrant as they would in natural sunlight. The narrower the beam, the more concentrated the light. To install them, press the lugs into your socket or use the screw terminals at the base for hardwiring.

Replace the slender bulbs in lamps and task lights.

Illuminate large warehouses, factories, and arenas with the bright, white light of these metal halide bulbs. 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. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.

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

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.

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

Replace the high-pressure sodium light bulbs in your fixture.

Bulbs cannot be sold to the listed areas because they do not meet local regulatory limits on mercury.

Non-cycling bulbs remain off at the end of their service life instead of repeatedly switching on and off, which helps prevent damage to ballasts and starters.

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

2-way bulbs operate at two brightness levels, as in high- and low-beam headlights.

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

2-way bulbs operate at two brightness levels, as in high- and low-beam headlights.