Pins on either side of the base lock these bulbs into sockets.

These bulbs are sized to fit tight spaces such as signs, control panels, indicators, and flashlights.

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

These miniature bulbs are sized to fit older telephone switchboards, signs, instruments, and indicators.

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

Wire terminals allow you to connect these bulbs to a power source through a panel.

Use these bulbs in tight spaces, such as in indicators and vehicle lights.

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

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

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