Bulbs have two filaments, which operate at different brightness levels.

These bulbs are small, but very bright, so they're often used in flashlights and optical instruments such as projectors and microscopes.

Bulbs have two filaments, which operate at different brightness levels.

Offset pins on the base lock these bulbs into sockets. One pin is slightly higher on the base than the other pin.

Fit these bulbs in tight spaces such as signs, control panels, indicators, and flashlights.

Commonly used in signs, instruments, indicators, and flashlights.

Swap out the high-intensity discharge (HID) bulbs in your hazardous-location lights to lower energy costs.

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

Use these bulbs in standard sockets, panels, and appliances.

A built-in sensor turns these bulbs on when it gets dark, then off when it’s light out.

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.

Get the most light out of a single socket. With multiple LED panels, these bulbs are as bright as light fixtures but don’t require wiring.

Lock these bulbs into GU24 sockets with a twist.

Energy efficient and long lasting, these four-pin bulbs are often used in task lights. They’re comparable to PL, Dulux, and Biax bulbs.