The CATA CT-4077B is a 5W LED Twisted Spark Plug bulb in the Swan Candle series, designed as a direct replacement for traditional E14 candelabra sockets in decorative and ambient lighting fixtures. Critical verification: confirm E14 socket compatibility and that 6400K cool white color temperature meets end-user aesthetic requirements, as this non-dimmable unit cannot be dimmed if dimming capability is needed.