A small, low-power indicator light bulb that fits standard BA9s sockets and shows status on industrial equipment and control panels.

A small clear indicator light bulb for telephone and telecom equipment, rated for 48 volts and lasting 5000 hours.

A small clear indicator light bulb for 48-volt control panels and machinery that lasts 5000 hours.

Small clear indicator light bulb for control panels and machinery, runs on 4 volts, lasts 500 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 designed for aircraft and control panels, rated for 28-volt systems.

A small clear light bulb for control panels and machinery that runs on 36 volts and lasts 5000 hours.

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

A small, bright halogen bulb for low-voltage accent and cabinet lighting, compatible with 24V systems.

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

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