These look like 4mm G4 bi-pin lamps. Mostly used in panel boards for indicators. Normally with halide or xenon and they have thick elements so they last a long time. We're talking years. You don't want your nuclear reactor or missile launcher bulbs burning out.
These look like 4mm G4 bi-pin lamps. Mostly used in panel boards for indicators. Normally with halide or xenon and they have thick elements so they last a long time. We're talking years. You don't want your nuclear reactor or missile launcher bulbs burning out.
These look like 4mm G4 bi-pin lamps. Mostly used in panel boards for indicators. Normally with halide or xenon and they have thick elements so they last a long time. We're talking years. You don't want your nuclear reactor or missile launcher bulbs burning out.