A small clear indicator light bulb for telephone and control panel equipment, rated for 12 volts with a 5000-hour lifespan.

A small clear light bulb for telephone and control panel indicator lights that runs on 60 volts and lasts 5000 hours.

A small clear indicator light bulb for 24V telephone and control equipment that lasts 5000 hours.

A small clear indicator light bulb designed for telephone systems and control panels, rated at 24 volts and lasting 6000 hours.

A small clear indicator light bulb for telephone systems and control panels that runs on 12 volts.

A small clear 12-volt indicator light bulb designed for telephone panels and control equipment.

A small clear indicator light bulb designed for control panels and equipment status displays, rated for 24 volts.

A small clear light bulb for telephone and telecom control panels, rated for 30 volts and lasting 6000 hours.

A small clear indicator light bulb designed for telephone and switching equipment, rated for 48 volts.

A small clear indicator light bulb designed for old telephone and switchboard equipment, running on 60 volts.

A small clear indicator light bulb designed for telephone systems and control panels, rated for 6 volts.