Pins on the base lock these bulbs into sockets to withstand vibration. They're often used in machines and elevators.

These bulbs produce a narrower, more concentrated beam of light than floodlight bulbs.

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.

Often used in task lights, these two-pin wedge base bulbs are comparable to PL, Dulux, and Biax bulbs.

Often used in task lights, these four-pin wedge base bulbs are comparable to PL, Dulux, and Biax bulbs.