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

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

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

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

Often used as status indicators, in displays, or to check circuit function in prototyping and testing, these bulbs have wire terminals to directly install onto circuit boards.

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

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

Pins on the base lock these bulbs into sockets to withstand vibration.

Disinfect air, water, and surfaces with shortwave ultraviolet radiation.